High-pressure oil tank

Abstract

The utility model relates to the technical field of oil tanks, and provides a high-pressure oil tank, which comprises an oil tank body, an oil inlet and an oil outlet, the reinforcing columns are detachably arranged in the oil tank body, and each reinforcing column is provided with a mounting part; and the fastening piece is sequentially arranged on the mounting hole and the mounting part in a penetrating mode, and the fastening piece is used for arranging the reinforcing column on the oil tank body. By means of the technical scheme, the problems that in the prior art, the pressure resistance of the oil tank is effectively improved, and meanwhile the safety and the service life of the oil tank are guaranteed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel tanks, and specifically, to a high-pressure fuel tank. Background Art

[0002] With the continuous development of the economy and the continuous progress of the automotive industry, automobiles have become more and more common in people's daily work and life, and play an irreplaceable role in the development of modern society. And with the continuous innovation of technology, people's requirements for the overall vehicle quality and riding experience of automobiles are also getting higher and higher.

[0003] In modern automotive design, high-pressure fuel tanks are widely used because they can withstand higher pressures. However, traditional high-pressure fuel tanks mainly rely on increasing the thickness of the fuel tank shell or internal welded support structures to improve pressure resistance. The former increases the weight and does not significantly improve the compressive capacity; the latter can enhance the pressure resistance of the fuel tank to a certain extent, but due to the weakness of the welded joints in a high-pressure environment, there are safety hazards in long-term use. Summary of the Utility Model

[0004] The utility model provides a high-pressure fuel tank, which solves the problem in the related art of how to effectively improve the pressure resistance of the fuel tank while ensuring its safety and service life.

[0005] The technical solution of the utility model is as follows:

[0006] A high-pressure fuel tank, comprising:

[0007] A fuel tank body, the fuel tank body having mounting holes;

[0008] Reinforcing columns, there are several of the reinforcing columns, and the several reinforcing columns are detachably arranged inside the fuel tank body, and the reinforcing columns have mounting parts;

[0009] Fasteners, the fasteners are sequentially passed through the mounting holes and the mounting parts, and the fasteners are used to arrange the reinforcing columns on the fuel tank body.

[0010] Optionally, the fuel tank body has a recessed area, the fasteners are arranged in the recessed area, the outer wall of the fuel tank body is recessed inward to form a protruding part on the inner wall of the fuel tank body, and the mounting part is detachably arranged on the protruding part.

[0011] Optionally, both ends of the reinforcing column are arranged on the fuel tank body through the fasteners, and the fasteners are bolts and nuts.

[0012] Optionally, the mounting holes are located in the recessed area, the mounting part has a first through hole, and further includes:

[0013] Reinforcing plate, the reinforcing plate is arranged in the recessed area, the reinforcing plate has a second through hole, the mounting hole, the first through hole and the second through hole are arranged corresponding to each other, and the bolt sequentially passes through the second through hole, the mounting hole and the first through hole and then is threadedly connected with the nut.

[0014] Optionally, it further includes:

[0015] Protective cap, the protective cap is arranged in the recessed area, the protective cap covers the outside of the reinforcing plate and the bolt, after the protective cap is installed, the top of the protective cap is not higher than the top surface of the fuel tank body.

[0016] Optionally, the reinforcing column is divided into a first column body and a second column body, and it further includes:

[0017] First bracket, the first bracket is arranged on the first column body;

[0018] Second bracket, the second bracket is arranged on the second column body;

[0019] Shock-absorbing members, there are several of them, and several shock-absorbing members are arranged at intervals between the first bracket and the second bracket.

[0020] Optionally, the corners of the protruding part are all arc transition surfaces.

[0021] The working principle and beneficial effects of the present invention are as follows:

[0022] In the present invention, the reinforcing column is placed at an appropriate position inside the fuel tank body, and then is fixed by a fastener passing through the mounting hole on the fuel tank body and the mounting part on the reinforcing column. It not only enhances the overall structural strength of the fuel tank, but also avoids the risk of interface fracture brought by the traditional welding method. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present invention in a clear and understandable manner in combination with the drawings of the preferred embodiments.

[0024] Figure 1 It is a schematic diagram of the internal structure of the fuel tank body in the present invention;

[0025] Figure 2 It is a schematic side view structure diagram of the fuel tank body in the present invention;

[0026] Figure 3 For Figure 2 The cross-sectional view at A-A in;

[0027] Figure 4 It is a schematic diagram of the structure of the reinforcing column of the present invention;

[0028] Figure 5 For Figure 3 the partial enlarged view at position A in

[0029] Figure 6 the structural schematic diagram of the fuel tank body in the present utility model.

[0030] In the figure: 1. Fuel tank body; 101. Concave area; 102. Mounting hole; 2. Reinforcing column; 201. Mounting part; 2011. First through hole; 202. First column; 203. Second column; 3. Protruding part; 4. Fastener; 401. Bolt; 402. Nut; 5. Shock absorber; 6. Protective cap; 7. Reinforcing plate; 701. Second through hole; 8. First bracket; 9. Second bracket. Specific embodiments

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the specific embodiments of the present utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other embodiments can be obtained.

[0032] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0033] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] Embodiment 1

[0036] Refer to Figures 1 to 4, which is the first embodiment of the present utility model, proposes a high-pressure fuel tank, comprising: a fuel tank body 1, the fuel tank body 1 having an installation hole 102; reinforcing columns 2, there are several reinforcing columns 2, and the several reinforcing columns 2 are detachably arranged inside the fuel tank body 1, and the reinforcing columns 2 have an installation part 201; a fastener 4, the fastener 4 is sequentially passed through the installation hole 102 and the installation part 201, and the fastener 4 is used to arrange the reinforcing column 2 on the fuel tank body 1.

[0037] In the above solution, the fuel tank body 1 is a hollow container, usually made of high-strength materials. Each reinforcing column 2 has an installation part 201 that matches the installation hole 102 on the fuel tank body 1, and the installation part 201 is a circular mounting plate. The reinforcing columns 2 can be flexibly arranged inside the fuel tank body 1 according to actual needs to provide additional support and disperse the pressure applied to the fuel tank wall. The fastener 4 is used to fix the reinforcing column 2 on the fuel tank body 1. The fastener 4 enables the reinforcing column 2 to be conveniently installed and disassembled, facilitating maintenance and replacement. During the assembly process, first place the reinforcing column 2 at an appropriate position inside the fuel tank body 1, and then fix it by passing the fastener 4 through the installation hole 102 on the fuel tank body 1 and the installation part 201 on the reinforcing column 2. This not only enhances the overall structural strength of the fuel tank but also avoids the risk of interface fracture brought by traditional welding methods. In addition, since the reinforcing column 2 is detachable, during daily maintenance or after an accident, the damaged part can be quickly inspected and replaced, greatly improving the maintenance efficiency and reducing the cost. The present invention provides a high-pressure fuel tank with a reasonable structure and easy to maintain, overcoming the deficiencies of traditional high-pressure fuel tanks. This high-pressure fuel tank can not only meet the requirements of modern automobiles for the pressure resistance of fuel tanks but also ensure the safety of the fuel tank.

[0038] Further, the fuel tank body 1 has a recessed area 101, the fastener 4 is arranged in the recessed area 101, an outward convex part 3 is formed on the inner wall of the fuel tank body 1 after the outer wall of the fuel tank body 1 is recessed inward, and the installation part 201 is detachably arranged on the convex part 3.

[0039] In the above solution, the fuel tank body 1 having the recessed area 101 means that one or more inwardly recessed areas are designed on the outside of the fuel tank body 1, that is, on the outer wall of the fuel tank. This recessed area 101 will form a corresponding protruding part (i.e., the protruding portion 3) inside the fuel tank, which will be the basis for the installation of the strengthening column 2. The fastener 4 is placed within this outer recessed area 101, and doing so has several advantages: on the one hand, it can protect the fastener 4 from the direct influence of the external environment, such as reducing the risk of corrosion; on the other hand, it also makes the fuel tank surface smoother and reduces the potential danger brought by external protrusions. It allows users to easily remove or replace the strengthening column 2 when necessary, thus simplifying the maintenance work of the fuel tank. Overall, by setting the recessed area 101 on the outer wall and forming the protruding portion 3 at the corresponding position on the inner wall, the strengthening column 2 can be fitted with the protruding portion 3 through its mounting portion 201 and fixed inside the fuel tank using the fastener 4. This not only enhances the structural stability of the fuel tank but also facilitates maintenance and repair.

[0040] Further, both ends of the strengthening column 2 are arranged on the fuel tank body 1 through the fastener 4, and the fastener 4 is a bolt 401 and a nut 402.

[0041] In the above solution, the bolt 401 and the nut 402 are one of the common mechanical connection methods, and their cooperation can provide a stable fixing effect. Since the bolt 401 and the nut 402 are connected by threads, the strengthening column 2 can be easily disassembled when necessary for inspection or replacement. By adjusting the position of the nut 402, the position of the strengthening column 2 can be finely adjusted within a certain range to ensure its best support effect. During installation, first, one end of the strengthening column 2 needs to be aligned with the mounting hole 102 or the protruding portion 3 on the fuel tank body 1, and then the bolt 401 is passed through the mounting hole 102 and the nut 402 is screwed on from the inside of the fuel tank. To ensure that the strengthening column 2 is evenly stressed, considering that the inside of the fuel tank may come into contact with fuel, the fastener 4 may need to be anti-corrosion treated to extend its service life.

[0042] Further, the mounting hole 102 is located within the recessed area 101, the mounting portion 201 has a first through-hole 2011, and further includes: a strengthening plate 7, the strengthening plate 7 is arranged within the recessed area 101, the strengthening plate 7 has a second through-hole 701, the mounting hole 102, the first through-hole 2011, and the second through-hole 701 are arranged correspondingly, and the bolt 401 sequentially passes through the second through-hole 701, the mounting hole 102, and the first through-hole 2011 and is threadedly connected to the nut 402.

[0043] In the above solution, the installation part 201 is a plate body. The first through hole 2011 of the installation part 201 is used to align with the installation hole 102 on the fuel tank body 1 and is connected by a fastener 4. One or more holes are required on the installation part 201 of the strengthening column 2 to align with the installation hole 102 on the fuel tank body 1. The strengthening plate 7 is arranged in the recessed area 101. The function of the strengthening plate 7 is to provide additional support at the place where the fastener 4 passes through, preventing local deformation or damage of the fuel tank body 1 due to the pressure of the fastener 4. The presence of the strengthening plate 7 can improve the structural strength at the connection point. The strengthening plate 7 has a second through hole 701. The second through hole 701 on the strengthening plate 7 corresponds to the installation hole 102 on the fuel tank body 1 and the first through hole 2011 on the strengthening column 2. These three holes need to be precisely aligned so that the fastener 4 can pass through smoothly. The bolt 401 first passes through the second through hole 701 on the strengthening plate 7, then passes through the installation hole 102 on the fuel tank body 1, and finally passes through the first through hole 2011 on the strengthening column 2. Then, the end of the bolt 401 is threadedly connected to the nut 402 to complete the fixation.

[0044] Furthermore, it further includes: a protective cap 6. The protective cap 6 is arranged in the recessed area 101. The protective cap 6 covers the outside of the strengthening plate 7 and the bolt 401. After the protective cap 6 is installed, the top of the protective cap 6 is not higher than the top surface of the fuel tank body 1.

[0045] In the above solution, both the bolt 401 and the strengthening plate 7 are placed under the protection of the protective cap 6, avoiding direct exposure to the external environment. The protective cap 6 can prevent the fastener 4 and the strengthening plate 7 from being affected by the external environment (such as rain, dust, etc.), and slow down the corrosion rate of metal components. The protective cap 6 is detachable. When it is necessary to check or maintain the internal fastener 4, the protective cap 6 can be conveniently removed.

[0046] Furthermore, the corners of the protruding part 3 are all arc transition surfaces.

[0047] In the above solution, the arc transition surface can improve the overall strength of the structure. Especially in a high-pressure environment, it can better disperse stress and avoid structural failure caused by local overload. Due to reducing stress concentration points, the arc transition surface helps to extend the service life of the fuel tank.

[0048] Embodiment 2

[0049] Referring to Figure 5 and Figure 6 , this is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is:

[0050] Further, the strengthening column 2 is divided into a first column body 202 and a second column body 203, and there is a fixing area between the first column body 202 and the second column body 203. It further includes: a first bracket 8 disposed on the first column body 202; a second bracket 9 disposed on the second column body 203; and a plurality of shock-absorbing members 5 spaced between the first bracket 8 and the second bracket 9.

[0051] In the above solution, the strengthening column 2 in this embodiment is divided into two parts to form the first column body 202 and the second column body 203. A shock-absorbing member 5 is installed between the two column bodies. The shock-absorbing member 5 can be a rubber pad, a spring or other types of elastic elements, and they are distributed between the first bracket 8 and the second bracket 9 to provide a uniform shock-absorbing effect. By reducing the impact of vibration on the fuel tank body 1, the shock-absorbing member 5 helps to extend the service life of the fuel tank. The bracket itself is also part of the strengthening column 2, and by increasing the rigidity of the column body, the structural stability of the entire strengthening column 2 system is improved.

[0052] Secondly, the shock-absorbing member 5 also has a buffering function. When the temperature changes greatly, the fuel tank will deform due to thermal expansion and contraction. The shock-absorbing member 5 can expand and contract following the deformation of the fuel tank, improving the applicability of the fuel tank.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A high-pressure fuel tank, characterized in that, Including: A fuel tank body (1), the fuel tank body (1) having a mounting hole (102); Reinforcing columns (2), there being several of the reinforcing columns (2), the several reinforcing columns (2) being detachably arranged inside the fuel tank body (1), the reinforcing columns (2) having a mounting portion (201); Fasteners (4), the fasteners (4) being sequentially passed through the mounting hole (102) and the mounting portion (201), the fasteners (4) being used to arrange the reinforcing columns (2) on the fuel tank body (1).

2. A high-pressure fuel tank according to claim 1, characterized in that, The fuel tank body (1) has a recessed area (101), the fasteners (4) being arranged in the recessed area (101), an outward depression of the outer wall of the fuel tank body (1) forming a protruding portion (3) on the inner wall of the fuel tank body (1), the mounting portion (201) being detachably arranged on the protruding portion (3).

3. The high-pressure fuel tank according to claim 2, characterized in that, Both ends of the reinforcing column (2) are arranged on the fuel tank body (1) through the fasteners (4), the fasteners (4) being bolts (401) and nuts (402).

4. A high-pressure fuel tank according to claim 3, characterized in that, The mounting hole (102) is located in the recessed area (101), the mounting portion (201) having a first through hole (2011), and further including: A reinforcing plate (7), the reinforcing plate (7) being arranged in the recessed area (101), the reinforcing plate (7) having a second through hole (701), the mounting hole (102), the first through hole (2011), and the second through hole (701) being arranged in correspondence, the bolt (401) being sequentially passed through the second through hole (701), the mounting hole (102), and the first through hole (2011) and then being threadedly connected to the nut (402).

5. The high-pressure fuel tank according to claim 4, characterized in that, Further including: A protective cap (6), the protective cap (6) being arranged in the recessed area (101), the protective cap (6) covering the outside of the reinforcing plate (7) and the bolt (401), after the protective cap (6) is installed, the top of the protective cap (6) not being higher than the top surface of the fuel tank body (1).

6. A high-pressure fuel tank according to claim 1, characterized in that, The reinforcing column (2) is divided into a first column body (202) and a second column body (203), and further including: A first bracket (8), the first bracket (8) being arranged on the first column body (202); A second bracket (9), the second bracket (9) being arranged on the second column body (203); Shock-absorbing members (5), there being several of them, the several shock-absorbing members (5) being arranged at intervals between the first bracket (8) and the second bracket (9).

7. A high-pressure fuel tank according to claim 2, characterized in that, The corners of the protruding portion (3) are all arc transition surfaces.

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