Embedded reinforcing bracket and high-pressure-resistant plastic oil tank comprising same

Abstract

This invention discloses an embedded reinforcing bracket, comprising a bracket body, positioning holes on the bracket body, and limiting structures. The lower part of the bracket body extends to both sides to form two wings. The positioning holes are located at the top of the bracket body, and the limiting structures are located at both ends of the bracket body. One end of the limiting structure is connected to the top of the bracket body, and the other end extends away from the bracket body. Two vertical surfaces of the bracket body are respectively used to connect the top of the bracket body and the two wings. Overmolten plastic is provided on the vertical surfaces, and molten plastic is filled between the wings and the mold through the overmolding holes. This reinforcing bracket is embedded in the tank wall, enabling localized reinforcement of the tank wall, thereby improving the overall pressure resistance of the tank and preventing localized deformation of the tank.

Description

Technical Field

[0001] This invention relates to the field of high-pressure oil tanks, and more specifically, to an embedded reinforcing bracket and a high-pressure resistant plastic oil tank comprising the same. Background Technology

[0002] Gasoline is a mixture of various hydrocarbons, containing a large number of light components that readily evaporate into a gaseous state at room temperature. Plug-in hybrid electric vehicles (PHEVs) may operate on electricity for extended periods without an engine, meaning the fuel vapor in the tank cannot be processed by engine combustion, resulting in a pressure inside the tank that is significantly higher than the external atmospheric pressure. Therefore, PHEVs typically require a high-pressure fuel tank.

[0003] The pressure resistance of plastic fuel tanks in existing China VI high-pressure hybrid vehicles is typically achieved by using internal reinforcing bars and external steel straps for clamping. However, the China VII standard places higher demands on the pressure resistance performance of the fuel system. When the existing China VI vehicles are subjected to the higher positive and negative pressure test conditions required by the China VII standard, local areas on the surface of the fuel tank may deform beyond the standard requirements due to insufficient strength in locations away from the reinforcing bars and steel straps. Summary of the Invention

[0004] The purpose of this invention is to provide an embedded reinforcing bracket and a high-pressure resistant plastic fuel tank containing the bracket. The reinforcing bracket is embedded in the fuel tank wall and can achieve local reinforcement of the fuel tank wall, thereby improving the overall pressure resistance of the fuel tank and preventing local deformation of the fuel tank.

[0005] To achieve the above objectives, the present invention provides an embedded reinforcing bracket, including a bracket body, positioning holes and limiting structures located on the bracket body. The lower part of the bracket body extends to both sides to form two wings. The positioning holes are located at the top of the bracket body. The limiting structures are located at both ends of the bracket body. One end of the limiting structure is connected to the top of the bracket body, and the other end extends away from the bracket body.

[0006] The two sides of the bracket body are used to connect the top of the bracket body and the two wings respectively. The sides are provided with overmolding holes, and molten plastic is filled between the wings and the mold through the overmolding holes.

[0007] Preferably, there are at least two positioning holes.

[0008] Preferably, the width of the top of the support body is set to L1, the width of the wing is set to L2, and the height of the support body is set to H, then H≤1 / 3(L1+2L2) and L2≥1 / 2H.

[0009] Preferably, multiple rubber-coating holes are evenly arranged along the length of the bracket body, and the lower edge of the rubber-coating holes is flush with the upper surface of the wing.

[0010] This utility model also provides a high-pressure resistant plastic oil tank including the aforementioned embedded reinforcing bracket, wherein the bracket body is embedded in the oil tank wall of the high-pressure resistant plastic oil tank.

[0011] Preferably, the high-pressure resistant plastic fuel tank includes one or more embedded reinforcing brackets.

[0012] Preferably, the embedded reinforcing bracket is located on the upper and / or lower surface of the high-pressure plastic tank.

[0013] Preferably, the height of the bracket body is less than the thickness of the tank wall at the location where the bracket body is embedded.

[0014] According to the above technical solution, the present invention sets the embedded reinforcing bracket as an integrally formed metal material, which gives it good mechanical strength. During the blow molding of the fuel tank, the molten plastic passes through the overmolding hole to weld the embedded reinforcing bracket to the fuel tank, so that the embedded reinforcing bracket is fixed in the fuel tank wall to increase the structural strength of the fuel tank wall at the embedding position.

[0015] When a large amount of fuel vapor is present in the fuel tank, the pressure inside the tank is much higher than the external atmospheric pressure. Under the influence of this pressure difference, the tank wall will be subjected to continuous pressure from the internal fuel vapor. High-pressure fuel tanks are typically equipped with reinforcing rods and external steel straps to tighten the tank and prevent deformation under continuous high pressure. However, parts of the tank wall far from the reinforcing rods or steel straps may experience excessive localized deformation due to insufficient strength under the pressure of the fuel vapor. During the initial design phase, design analysis is used to identify potential strength risks in the tank, and embedded reinforcing supports are installed at these locations. The localized reinforcement provided by these embedded supports improves the overall pressure resistance of the tank, preventing excessive localized deformation.

[0016] To ensure that the embedded reinforcing bracket can be reliably embedded in the location of the fuel tank where there is a strength risk, the top of the embedded reinforcing bracket is provided with a positioning hole, and the blow molding mold of the fuel tank is provided with a positioning pin that mates with the positioning hole. Through the cooperation of the positioning hole and the positioning pin, the embedded reinforcing bracket can be reliably embedded into the target position of the fuel tank.

[0017] To prevent the embedded reinforcing bracket from detaching from the blow molding mold during the blow molding process, a limiting structure is provided on the embedded reinforcing bracket, and a limiting clamping structure is provided on the blow molding mold. The limiting structure and the limiting clamping structure cooperate to restrict the position of the embedded reinforcing bracket on the mold, so that the embedded reinforcing bracket will not fall off the blow molding mold during the blow molding process, thus ensuring that the relative position of the embedded reinforcing bracket and the oil tank meets the design requirements after blow molding.

[0018] The lower part of the bracket body extends to both sides to form two wing edges, making the cross-section of the entire bracket body in a "ji" shape. This "ji"-shaped bracket body is first fixed to the blow molding die, and then the fuel tank is blow molded. During the blow molding process, the molten plastic can enter the space between the wing edge and the die through the overmolding holes on the vertical surface. Under the pressure of the compressed air for blow molding, the molten plastic continuously enters the space between the wing edge and the die until the space between the wing edge and the die is completely filled with the molten plastic. After the blow molding is completed and the fuel tank is completely cooled, the metal embedded reinforcement bracket is fused with the plastic fuel tank to form a whole. Thereafter, the strength of the embedded reinforcement bracket can be used to improve the local structural strength of the plastic fuel tank.

[0019] Preferably, the embedded reinforcement bracket can be set to be fixed at any position of the upper die or the lower die of the fuel tank blow molding die, so as to achieve the effect of strengthening any position of the plastic fuel tank. Moreover, the embedded reinforcement bracket can also be set to be a curved surface, a non-straight line or any other required shape according to the surface profile of the fuel tank. No matter what shape the embedded reinforcement bracket is, it can be fused with the fuel tank during the blow molding process by being fixed to the die, so as to achieve the effect of strengthening any required position of the fuel tank.

[0020] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the following specific implementation to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0022] Figure 1 is a schematic structural diagram of an embedded reinforcement bracket;

[0023] Figure 2 is a front view of an embedded reinforcement bracket;

[0024] Figure 3 is a left view of an embedded reinforcement bracket;

[0025] Figure 4 is a perspective view of an embedded reinforcement bracket;

[0026] Figure 5 is Figure 4 a partial view of;

[0027] Figure 6 is a high-pressure resistant plastic fuel tank including an embedded reinforcement bracket;

[0028] Figure 7 is Figure 6 a sectional view of;

[0029] Figure 8 yes Figure 7 A partial view.

[0030] Explanation of reference numerals in the attached figures

[0031] 1. Bracket body 2. Positioning holes

[0032] 3 limiting structures 11 wing edges

[0033] 12 facades, 13 support structure top

[0034] 4. Glue holes; 5. Fuel tank wall

[0035] 10 Embedded Reinforced Brackets 20 Oil Tanks Detailed Implementation

[0036] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] In this invention, unless otherwise stated, directional terms such as "lower part," "top," "both sides," "both ends," and "away from" in the terminology represent only the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0038] See Figure 1-5 An embedded reinforcing bracket 10 is described above. The embedded reinforcing bracket 10 includes a bracket body 1, a positioning hole 2 located on the bracket body 1, and a limiting structure 3. The lower part of the bracket body 1 extends to both sides to form two wings 11. The positioning hole 2 is located at the top 13 of the bracket body. The limiting structure 3 is located at both ends of the bracket body 1. One end of the limiting structure 3 is connected to the top 13 of the bracket body, and the other end extends away from the bracket body 1.

[0039] The two vertical surfaces 12 of the bracket body 1 are used to connect the top 13 of the bracket body and the two wings 11 respectively. The vertical surfaces 12 are provided with a coating hole 4. Molten plastic is filled between the wings 11 and the mold through the coating hole 4.

[0040] The embedded reinforcing bracket 10 is made of a single piece of metal.

[0041] By implementing the above technical solution, the embedded reinforcing bracket 10 is made of one-piece molded metal material, which gives it good mechanical strength. When the fuel tank is blow-molded, the molten plastic passes through the overmolding hole to weld the embedded reinforcing bracket 10 to the fuel tank 20, so that the embedded reinforcing bracket 10 is fixed in the fuel tank wall 5 to increase the structural strength of the fuel tank wall 5 at the embedded position.

[0042] When there is a large amount of fuel vapor in the fuel tank 20, the pressure inside the fuel tank 20 is much higher than the external atmospheric pressure. Under the action of the internal and external pressure difference, the fuel tank wall 5 will be subjected to the continuous pressure from the internal fuel vapor. Usually, a reinforcing rod is provided inside the high-pressure fuel tank 20 and the fuel tank 20 is tightened by an external steel belt to prevent the fuel tank 20 from deforming under the continuous high pressure. However, the fuel tank wall 5 at some positions far from the reinforcing rod or the steel belt may undergo local excessive deformation under the pressure of the fuel vapor due to insufficient self-strength. At the initial stage of the design of the fuel tank 20, the positions where the fuel tank 20 may have strength risks are identified by means of design analysis, and an embedded reinforcing bracket 10 is provided at these positions. By using the local strengthening effect of the embedded reinforcing bracket 10, the overall pressure resistance strength of the fuel tank 20 is improved, and the situation of local excessive deformation of the fuel tank 20 is avoided.

[0043] In order to ensure that the embedded reinforcing bracket 10 can be reliably embedded in the position of the fuel tank 20 with strength risks, a positioning hole 2 is provided at the top of the embedded reinforcing bracket 10, and a positioning pin matching with the positioning hole 2 is provided on the blow molding die of the fuel tank 20. Through the cooperation of the positioning hole 2 and the positioning pin, it is ensured that the embedded reinforcing bracket 10 is reliably embedded in the target position of the fuel tank 20.

[0044] In order to prevent the embedded reinforcing bracket 10 from detaching from the blow molding die during the blow molding production process, the embedded reinforcing bracket 10 is further provided with a limiting structure 3, and a limiting clamping structure is provided on the blow molding die. The limiting structure 3 cooperates with the limiting clamping structure, thereby realizing the position limitation of the embedded reinforcing bracket 10 on the die, so that during the blow molding process, the relative position between the embedded reinforcing bracket 10 and the die can be ensured to be stable, thereby ensuring that the reinforcing bracket 10 will not fall off from the blow molding die, and the relative position between the embedded reinforcing bracket 10 and the fuel tank 20 after blow molding meets the design requirements.

[0045] Two wing edges 11 extend from the lower part of the bracket body 1 to both sides, making the cross-section of the entire bracket body 1 in a "U" shape. The "U"-shaped bracket body 1 is first fixed on the blow molding die, and then the fuel tank 20 is blow molded. During the blow molding process, the molten plastic can enter the space between the wing edge 11 and the die through the encapsulation hole 4 on the vertical surface 12. Under the pressure of the compressed air for blow molding, the molten plastic continuously enters the space between the wing edge 11 and the die until the space between the wing edge 11 and the die is completely filled with the molten plastic. After the blow molding is completed and the fuel tank 20 is completely cooled, the metal embedded reinforcing bracket 10 is welded to the plastic fuel tank 20 to form an integral body. Thereafter, the strength of the embedded reinforcing bracket 10 can be used to reliably improve the local structural strength of the plastic fuel tank 20.

[0046] Preferably, the embedded reinforcing bracket 10 can be fixed at any position on the upper or lower mold of the blow molding die of the oil tank 20, thereby achieving the effect of reinforcing any position of the plastic oil tank 20. Moreover, the embedded reinforcing bracket 10 can also be set to any required shape such as curved surface or non-linear surface according to the surface contour of the oil tank 20. Regardless of the shape of the embedded reinforcing bracket 10, it can be welded to the oil tank 20 during the blow molding process by fixing it to the mold, thereby achieving the effect of reinforcing any position of the oil tank 20 that needs to be reinforced.

[0047] In this embodiment, preferably, the positioning holes 2 are set to at least two.

[0048] The positioning holes 2 correspond one-to-one with the positioning pins on the mold. By setting at least two positioning holes 2, the relative position of the embedded reinforcing bracket 10 and the mold can be determined. Then, by cooperating with the limiting structure and the limiting clamping structure on the mold, the embedded reinforcing bracket 10 can be fixed to the mold. During the blow molding process, the embedded reinforcing bracket 10 can maintain a stable position, thereby ensuring that after blow molding, the embedded reinforcing bracket 10 is located in the designed position in the oil tank 20.

[0049] Preferably, the positioning pin is cylindrical, one of the positioning holes 2 is a circular hole that mates with the cylindrical positioning pin, and the other positioning holes 2 are oblong holes, so that the embedded reinforcing bracket 10 can be quickly installed onto the blow molding die.

[0050] In this embodiment, preferably, the width of the top 13 of the support body is set to L1, the width of the wing 11 is set to L2, and the height of the support body is set to H, then H≤1 / 3(L1+2L2) and L2≥1 / 2H.

[0051] The embedded reinforcing bracket 10 is fused to the tank wall 5. Since the embedded reinforcing bracket 10 is metal and the tank wall 5 is flexible plastic, in order to ensure the reliability of the connection between the embedded reinforcing bracket 10 and the tank wall 5, the wing of the embedded reinforcing bracket 10 is set to be wider to increase the contact area between the bracket body 1 and the tank 20, improve the connection strength at the fusion point, and thus improve the stability of the embedded reinforcing bracket 10 in the tank wall 5.

[0052] Similarly, while ensuring the passage of molten plastic through the overlay hole 4 and the feasibility of processing the embedded reinforcing bracket 10, the height of the embedded reinforcing bracket 10 can be reduced as much as possible to improve the wrapping effect of the tank wall 5 on the embedded reinforcing bracket 10. Preferably, H≤1 / 3(L1+2L2).

[0053] In this embodiment, preferably, a plurality of adhesive holes 4 are evenly arranged along the length direction of the bracket body 1, and the lower edge of the adhesive holes 4 is flush with the upper surface of the wing 11, or the lower edge of the adhesive holes 4 is slightly higher than the upper surface of the wing 11.

[0054] Setting more overlay holes 4 can increase the amount of molten plastic entering the gap between the wing 11 and the mold through the overlay holes 4 per unit time, thereby ensuring that there is enough molten plastic entering the gap between the wing 11 and the mold during the processing time, thus achieving reliable welding between the embedded reinforcing bracket 10 and the tank wall 5.

[0055] During blow molding, compressed air forces the molten plastic outward from the center of the mold, eventually causing the plastic to adhere to the inner surface of the mold. When the molten plastic reaches the overmolding hole 4, it overflows outward under the pressure of the internal compressed air. The lower edge of the overmolding hole 4 is set to be flush with the upper surface of the flange 11, allowing the molten plastic to adhere to the upper surface of the flange 11 and enter the space between the flange 11 and the mold. At the same time, the molten plastic outside the flange 11 also moves across the flange 11 into the space between the flange 11 and the mold under the pressure of the compressed air inside the mold. The plastic entering through the overmolding hole 4 and the plastic entering from the outside of the flange 11 converge at the upper surface of the flange 11. Subsequently, as time goes on, more and more plastic enters this space, and this plastic gradually moves towards the mold. During the process of the plastic moving towards the mold, the air originally present between the flange 11 and the mold is gradually expelled, thus avoiding the problem of air bubbles being generated between the flange 11 and the mold due to the inability to completely expel air.

[0056] Considering factors such as processing errors, the lower edge of the overmolding hole 4 can be slightly higher than the upper surface of the wing 11 to avoid air bubbles being generated on the upper surface of the wing 11 during the blow molding process.

[0057] The present invention also provides Figure 6-8 The high-pressure resistant plastic oil tank 20, which includes an embedded reinforcing bracket 10, has the bracket body 1 embedded in the oil tank wall 5 of the high-pressure resistant plastic oil tank 20.

[0058] The top 13 of the bracket body is flush with the outer surface of the tank wall 5 of the high-pressure resistant plastic fuel tank 20, the two flanges 11 are located inside the tank wall 5, and the limiting structure 3 protrudes from the outer surface of the high-pressure resistant plastic fuel tank 20. The bracket body 1, embedded in the tank wall 5, can strengthen the tank wall 5 through its excellent structural strength.

[0059] Preferably, the height of the limiting structure 3 is set to a small value, so that after the fuel tank 20 is manufactured, the limiting structure 3 will not interfere with the vehicle body or the ground. Therefore, the limiting structure 3 of the fuel tank 20 can be retained without any further processing. The limiting structure 3 located at the top 13 of the bracket body can also improve the overall structural strength of the bracket body 1.

[0060] In this embodiment, preferably, the high-pressure resistant plastic oil tank 20 includes one or more embedded reinforcing brackets 10.

[0061] Based on the distribution of areas in the high-pressure resistant plastic oil tank 20 that require local reinforcement, one or more embedded reinforcing brackets 10 can be reasonably set up. These embedded reinforcing brackets 10 can respectively enhance the strength of multiple positions of the high-pressure resistant plastic oil tank 20.

[0062] Furthermore, by selecting different metals or setting the embedded reinforcing bracket 10 to different thicknesses, the reinforcement effect of the tank wall 5 can be adjusted.

[0063] In this embodiment, preferably, the embedded reinforcing bracket 10 is located on the upper and / or lower surface of the high-pressure plastic oil tank 20.

[0064] The high-pressure plastic oil tank 20 is manufactured by blow molding. During the process, the upper and lower molds are closed to form an internal cavity, in which the oil tank 20 is formed. The upper and lower molds of the blow molding die correspond to the upper and lower surfaces of the oil tank 20, respectively.

[0065] By fixing the embedded reinforcing bracket 10 to the upper and / or lower mold of the mold, the embedded reinforcing bracket 10 will be embedded in the upper and / or lower surface of the high-pressure plastic oil tank 20 after production. Therefore, by fixing the embedded reinforcing bracket 10 to the upper and / or lower mold of the mold, the strength of any position on the surface of the oil tank 20 can be improved.

[0066] In this embodiment, preferably, the height of the bracket body 1 is less than the thickness of the tank wall 5 at the embedding position of the bracket body 1.

[0067] The thickness of the tank wall 5 at the location of the support body 1 is set to be greater than the thickness of the support body 1, so that the tank wall 5 can completely wrap the support body 1. The good wrapping of the tank wall 5 with the embedded reinforcing bracket 10 is beneficial to the stability of the support body 1 within the tank wall 5, thereby improving the reliability of the high-pressure resistant plastic tank 20 containing the embedded reinforcing bracket 10.

[0068] The present invention also provides a method for manufacturing the high-pressure resistant plastic oil tank 20, the method comprising:

[0069] Step 1: Place the embedded reinforcing bracket 10 corresponding to the positioning pin of the mold, and at the same time, mate the limiting structure 3 with the limiting clamping structure of the mold.

[0070] Step 2: Unload and mold the high-pressure resistant plastic oil tank 20. During the blow molding process, the plastic and the embedded reinforcing bracket 10 are fused together as a whole.

[0071] Step 3: Blow molding complete, remove the product.

[0072] By placing the embedded reinforcing bracket 10 corresponding to the positioning pin of the mold, the embedded reinforcing bracket 10 and the mold maintain a relatively fixed positional relationship. Then, the limiting structure 3 is matched with the limiting clamping structure of the mold to achieve relative fixation between the embedded reinforcing bracket 10 and the mold, so that the embedded reinforcing bracket 10 will not fall off the mold during the production process.

[0073] After the embedded reinforcing bracket 10 is fixed, the material can be fed into the mold. Then, the mold is closed and blow molding begins. During the injection of compressed air into the mold, the compressed air pushes the surrounding molten plastic towards the inner wall of the mold. During the movement of the plastic, it will first come into contact with the embedded reinforcing bracket 10 fixed on the mold. Then, with the continuous action of compressed air, the plastic located inside the embedded reinforcing bracket 10 will flow into the space between the wing 11 and the mold through the overmolding hole 4. Meanwhile, the plastic located outside the wing 11 will also flow over the wing 11 and into the space between the wing 11 and the mold under the action of compressed air.

[0074] The overmolding hole 4 is set to be flush with the upper surface of the wing 11, so that the plastic flowing in through the overmolding hole 4 can flow along the upper surface of the wing 11. The plastic entering over the wing 11 merges with the plastic entering through the overmolding hole 4 on the upper surface of the wing 11. As the amount of plastic entering this space gradually increases, the volume of this plastic increases, it gradually expands and moves towards the mold. During the process of the plastic expanding and moving, it gradually squeezes the air between the wing 11 and the mold towards the mold, and finally discharges it through the vent hole on the mold, thereby avoiding the problem of air holes at the wing 11.

[0075] Once the wall thickness of the oil tank wall 5 at all points meets the requirements, the oil tank 20 product inside the mold can be cooled. After cooling is complete, the mold can be opened and the oil tank 20 product can be removed.

[0076] By installing the next or the next set of embedded reinforcing brackets 10 on the mold, the production process of the next fuel tank 20 can begin.

[0077] In this embodiment, preferably, in step 1, the fitting gap between the limiting structure 3 and the limiting clamping structure is no greater than 0.1 mm;

[0078] In step 3, the distance between the wing edge 11 and the inner surface of the tank wall 5 shall not be less than 2 mm.

[0079] A small gap is provided between the limiting clamping structure on the mold and the limiting structure 3 to prevent the molten plastic from flowing out through the gap during the blow molding process and affecting the thickness of the tank wall 5 at the embedded reinforcing bracket 10 position.

[0080] Preferably, the clearance between the limiting structure 3 and the limiting clamping structure is no greater than 0.1 mm, resulting in a smaller gap between the mold and the support body 1. This makes it difficult for plastic to enter the mold through this gap. Simultaneously, setting the gap width between the mold and the surface of the limiting structure 3 near the tank wall 5 to no greater than 0.1 mm further increases the resistance to the flow of molten plastic. Since the surface temperature of the mold is low, a small amount of high-temperature plastic passing through this small gap will easily cool upon contact with the low-temperature mold. During the cooling process, the plastic's fluidity will also decrease. Therefore, by increasing the resistance to plastic flow and reducing its fluidity, even if the molten plastic can enter the gap between the mold and the support body 1, it is difficult for it to flow out in large quantities, thereby reducing the consumption of molten plastic at the location of the limiting structure 3 and avoiding affecting the thickness of the tank wall 5.

[0081] By setting the gap between the limiting structure 3 and the limiting clamping structure to be no more than 0.1mm, it is possible to prevent a large amount of molten plastic from flowing out from this gap position, thereby ensuring that the tank wall 5 at the embedded reinforcing bracket 10 position can grow to the wall thickness required by the design within a limited time.

[0082] To ensure the reliability of the tank wall 5 in wrapping the embedded reinforcing bracket 10, the distance between the wing edge 11 and the inner surface of the tank wall 5 is set to be no less than 2mm.

[0083] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0084] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0085] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. An embedded reinforcing bracket, characterized by, Includes a support body (1), a positioning hole (2) on the support body (1) and a limiting structure (3). The lower part of the support body (1) extends to both sides to form two wings (11). The positioning hole (2) is located at the top (13) of the support body. The limiting structure (3) is located at both ends of the support body (1). One end of the limiting structure (3) is connected to the top (13) of the support body, and the other end extends away from the support body (1). The two facades (12) of the support body (1) are used to connect the top (13) and the two wings (11) of the support body respectively. The facades (12) are provided with a coating hole (4). Molten plastic is filled between the wings (11) and the mold through the coating hole (4).

2. The embedded reinforcement cradle of claim 1, wherein, The positioning holes (2) are set to at least two.

3. The embedded reinforcement bolster of claim 1, wherein, The width of the top (13) of the support body is set to L1, the width of the wing (11) is set to L2, and the height of the support body is set to H. Then H≤1 / 3(L1+2L2) and L2≥1 / 2H.

4. The embedded reinforcement bolster of claim 1, wherein, Multiple rubber-coated holes (4) are evenly arranged along the length of the bracket body (1), and the lower edge of the rubber-coated holes (4) is flush with the upper surface of the wing (11).

5. A high pressure resistant plastic oil tank comprising the embedded reinforcement support according to any one of claims 1 to 4, characterized in that, The bracket body (1) is embedded in the tank wall (5) of the high-pressure resistant plastic oil tank.

6. The high-pressure-resistant plastic oil tank according to claim 5, characterized in that The high-pressure resistant plastic fuel tank includes one or more embedded reinforcing brackets.

7. The high pressure resistant plastic oil tank according to claim 5, characterized in that The embedded reinforcing bracket is located on the upper and / or lower surface of the high-pressure plastic tank.

8. The high pressure resistant plastic oil tank according to claim 5, characterized in that The height of the bracket body (1) is less than the thickness of the tank wall (5) at the embedding position of the bracket body (1).

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