High-strength and high-toughness aluminum alloy profile

Abstract

The utility model belongs to the technical field of aluminum alloy, and particularly relates to a high-strength and high-toughness aluminum alloy profile which comprises a plurality of I-shaped beams. Two connecting plates; each supporting plate comprises a V-shaped folded plate, a plurality of clamping blocks and a plurality of inserting blocks; each outer baffle comprises a bent plate and connecting strips arranged at the two ends of the bent plate respectively; compared with the prior art, the high-strength and high-toughness reinforced concrete beam has excellent bearing capacity and bending strength, high strength and high toughness are considered on the premise that the advantage of light weight is guaranteed, uniform distribution of loads is achieved, local stress concentration is reduced, the overall bearing capacity is high, production and manufacturing are convenient, and therefore the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to aluminum alloy technical field, concretely relates to a high tenacity aluminum alloy section bar. BACKGROUND

[0002] In the field of high-speed train manufacturing, lightweight design is one of the core technical directions to improve operating efficiency and reduce energy consumption. Aluminum alloy profiles are widely used in interior parts of train bodies (such as wall panels, partitions, luggage racks, etc.) due to their low density (about 2.7 g / cm³), strong corrosion resistance, and easy processing. After replacing traditional steel, the weight can be reduced by 30%-50%, significantly reducing the energy consumption of train operation. However, the existing aluminum alloy interior profiles still have the following technical bottlenecks in practical application:

[0003] The structural strength of the existing aluminum alloy profiles is not good, and the stress concentration phenomenon is prominent. It cannot balance high strength and high toughness under the premise of ensuring lightweight advantage, and the overall carrying capacity is weak. SUMMARY

[0004] The utility model aims at providing a high tenacity aluminum alloy section bar, solving the technical problem that the aluminum alloy section bar in the prior art cannot balance high strength and high toughness under the premise of ensuring lightweight advantage, and the overall carrying capacity is weak.

[0005] The utility model discloses a high tenacity aluminum alloy section bar, comprising:

[0006] A plurality of I-beams are arranged equidistantly side by side.

[0007] Two connecting plates are respectively clamped and connected to the upper and lower sides of the I-beams.

[0008] Two supporting plates are arranged one by one on the side of the connecting plates away from the I-beams. Each supporting plate comprises a V-shaped folding plate, a plurality of clamping blocks and a plurality of plug-in blocks. The clamping blocks are arranged one by one at the bending parts of the V-shaped folding plate close to the connecting plates and are clamped and connected with the connecting plates. The plug-in blocks are arranged one by one at the bending parts of the V-shaped folding plate away from the connecting plates.

[0009] Two outer baffle plates are arranged one by one on the outer sides of the supporting plates. Each outer baffle plate comprises a bending plate and a connecting strip separately arranged at both ends of the bending plate. The inner side of the bending plate forms a plug-in groove matched with the plug-in blocks. The cross section of the connecting strip is rectangular and is attached to the connecting plate. The outer side surface is provided with a convex groove.

[0010] The I-beam, the connecting plate, the supporting plate and the outer baffle are matched with each other, excellent bearing capacity and bending strength are achieved, high strength and high toughness are considered on the premise of ensuring the lightweight advantage, uniform distribution of load is realized, local stress concentration is reduced, the overall bearing capacity is strong, and production and manufacturing are facilitated, so that the production cost is reduced.

[0011] Based on the above technical solutions, the scheme of the application can also be improved as follows:

[0012] Preferably, a plurality of first clamping grooves matched with the I-beam are formed on the connecting plate, and a plurality of second clamping grooves matched with the clamping blocks are formed on the connecting plate; by adopting the scheme, firm connection of the I-beam and the supporting plate with the connecting plate is achieved, and the structure is simple, compact, and easy to install, meeting the lightweight design requirement.

[0013] Preferably, the first clamping grooves and the second clamping grooves are isosceles trapezoidal; by adopting the scheme, the advantages of good matching, strong fastening, high structural stability, strong bearing capacity, and easy manufacturing and processing are achieved.

[0014] Preferably, it comprises:

[0015] A plurality of first buffer sound insulation blocks are filled one by one in the triangular cavities formed by the cooperation of the V-shaped folding plate and the connecting plate or the bending plate;

[0016] A plurality of second buffer sound insulation blocks are filled one by one in the trapezoidal cavities formed by the cooperation of the V-shaped folding plate, the connecting strip and the connecting plate; by adopting the scheme, the sound insulation performance is significantly improved, additional buffering effect is provided, the impact resistance of the profile is enhanced, and the structural stability and service life of the profile are improved.

[0017] Preferably, it comprises:

[0018] A plurality of heat blocking blocks are filled one by one in the rectangular cavities formed by the cooperation of the I-beam and the connecting plate; by adopting the scheme, the conduction path of heat in the aluminum alloy profile can be blocked, thereby reducing the heat transfer and improving the heat insulation performance of the profile.

[0019] Preferably, the I-beam comprises a vertical plate and two horizontal plates, the vertical plate is arranged between the two horizontal plates, and a plurality of hollow grooves are arranged along the axis direction; by adopting the scheme, the material consumption of the vertical plate can be significantly reduced, thereby improving the lightweight effect, and also reducing the heat transfer efficiency and improving the heat insulation effect.

[0020] Preferably, the hollowed-out grooves are isosceles trapezoids and are arranged alternately in both directions. This solution can maximize the removal of material from the vertical plate and make the overall shape regular, so as to ensure uniform stress distribution, avoid stress concentration, and ensure the overall support effect and structural stability.

[0021] Through the above technical solution, this utility model achieves the following beneficial effects:

[0022] 1. This application achieves excellent load-bearing capacity and bending strength through the cooperation between the I-beam, connecting plate, support plate and outer baffle. It also takes into account high strength and high toughness while ensuring the advantage of lightweight, realizes uniform load distribution, reduces local stress concentration, has strong overall load-bearing capacity, is easy to manufacture and reduces production costs.

[0023] 2. This application achieves a firm connection between the I-beam and the support plate and the connecting plate by setting the first slot and the second slot. It has a simple structure, compact design, and is easy to install, thus meeting the design requirements of lightweighting. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the high-strength and tough aluminum alloy profile described in a specific embodiment of this application;

[0026] Figure 2 for Figure 1 The diagram shows the structure of a high-strength and tough aluminum alloy profile without filler material.

[0027] Figure 3 for Figure 1 The diagram shows the structure of the outer baffle in the high-strength and tough aluminum alloy profile.

[0028] Figure 4 for Figure 1 The diagram shows the structural schematic of the support plate in the high-strength and tough aluminum alloy profile.

[0029] Figure 5 for Figure 1 The diagram shows the structural schematic of the connecting plate in the high-strength and high-toughness aluminum alloy profile.

[0030] Figure 6 for Figure 1 The diagram shows the structural schematic of the I-beam in the high-strength and high-toughness aluminum alloy profile.

[0031] Figure 7 for Figure 6 Side view of the I-beam shown;

[0032] Figure 8 for Figure 1 The diagram shows the structure of the high-strength and high-toughness aluminum alloy profile during the butt joint process.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. I-beam; 2. Connecting plate; 3. Support plate; 4. Outer baffle; 5. First buffer sound insulation block; 6. Second buffer sound insulation block; 7. Heat insulation block;

[0035] 101. Vertical plate; 102. Horizontal plate; 201. First slot; 202. Second slot; 301. V-shaped folding plate; 302. Locking block; 303. Inserting block; 401. Bending plate; 402. Connecting strip;

[0036] 1011, hollow groove; 4011, slot; 4021, convex groove. Detailed Implementation

[0037] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0038] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solution of this utility model, such as the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," are all derived from the normal orientation of components in high-strength and tough aluminum alloy profiles. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0042] Example:

[0043] like Figure 1 As shown in the embodiment of this application, a high-strength and high-toughness aluminum alloy profile is disclosed for interior components such as wall panels, partitions, and luggage racks in high-speed trains. Its specific structure includes: multiple I-beams 1, two connecting plates 2, two support plates 3, and two outer baffles 4.

[0044] Multiple I-beams are arranged side by side at equal intervals, which has good load-bearing capacity and bending strength, giving the entire profile excellent mechanical properties.

[0045] Two connecting plates 2 are respectively snapped onto the upper and lower sides of the I-beam 1, thus connecting with multiple I-beams 1 to form a whole, thereby enhancing the overall rigidity and stability of the profile.

[0046] Two support plates 3 are arranged one-to-one on the side of the connecting plate 2 away from the I-beam 1;

[0047] Each support plate 3 includes: a V-shaped folding plate 301, multiple locking blocks 302 and multiple insert blocks 303; the multiple locking blocks 302 are respectively located at the bend of the V-shaped folding plate 301 near the connecting plate 2 and are engaged with the connecting plate 2; the multiple insert blocks 303 are respectively located at the bend of the V-shaped folding plate 301 away from the connecting plate 2.

[0048] It should be noted that the V-shaped folded plate 301 and the connecting plate 2 together form a continuous series of triangular support structures. The truss formed by these structures can convert the load into axial force rather than bending moment through the nodes, thereby significantly improving the resistance to deformation and achieving uniform load distribution. This reduces local stress concentration and enables the same strength to be achieved with a lighter structure.

[0049] Two outer baffles 4 are correspondingly installed on the outside of the support plate 3; and each outer baffle 4 includes a bent plate 401 and connecting strips 402 disposed at both ends of the bent plate 401. The inner side of the bent plate 401 forms a slot 4011 that is adapted to the insert block 303. The cross section of the connecting strip 402 is rectangular and fits against the connecting plate 2, and a convex groove 4021 is opened on the outer side.

[0050] It should be noted that the bending plate 401 forms alternating grooves on its inner and outer sides by bending, and the groove on its inner side is the slot 4011 that matches the insert block 303, while the area on the outer side of the bending plate 401 corresponding to the slot 4011 is a protrusion.

[0051] It is understandable that when the outer side of the bending plate 401 is impacted, most of the stress area is in the protrusion, and this area is connected to the insert block 303 through the slot 4011. Therefore, the force can be distributed and transferred to the V-shaped bending plate 301 in a timely manner. In this way, the triangular support structure mentioned above reduces local stress concentration, improves the deformation resistance, and achieves uniform load distribution.

[0052] It should be noted that, as Figure 1 , Figure 3 and Figure 8 As shown, the cross-section of the connecting strip 402 is rectangular and it fits into the connecting plate 2. It serves as a support at both ends, enhancing the structural stability and the load-bearing capacity at the ends. The outer side is provided with a convex groove 4021 for connecting the profiles.

[0053] The working principle of the above technical solution is as follows:

[0054] When producing profiles, the I-beam 1, connecting plate 2, support plate 3 and outer baffle 4 are processed and manufactured separately, and then assembled into a whole.

[0055] When connecting profiles, such as Figure 8 As shown, align and fit the two ends of the two profiles together, and then insert the two ends of the I-shaped block into the corresponding two convex grooves 4021 respectively.

[0056] This utility model, through the cooperation between the above-mentioned I-beam 1, connecting plate 2, supporting plate 3 and outer baffle 4, has excellent load-bearing capacity and bending strength. While ensuring the advantage of lightweight, it also takes into account high strength and high toughness, achieves uniform load distribution, reduces local stress concentration, has strong overall load-bearing capacity, is easy to manufacture, and reduces production costs.

[0057] In some embodiments, such as Figure 5As shown, the connecting plate 2 has a plurality of first slots 201 adapted to the I-beam 1, and the connecting plate 2 has a plurality of second slots 202 adapted to the locking block 302.

[0058] The above setup achieves a secure connection between the I-beam 1, the support plate 3, and the connecting plate 2. It is simple in construction, compact in structure, and easy to install, thus meeting the design requirements for lightweighting.

[0059] Based on the above embodiments, such as Figure 5 As shown, both the first slot 201 and the second slot 202 are isosceles trapezoids.

[0060] The above-mentioned design has advantages such as good compatibility, strong fastening, high structural stability, strong load-bearing capacity, and ease of manufacturing and processing.

[0061] In some embodiments, such as Figure 1 As shown, it also includes:

[0062] Multiple first buffer sound insulation blocks 5 are filled one-to-one into the triangular cavity formed by the V-shaped folding plate 301 and the connecting plate 2 or the bending plate 401;

[0063] Multiple second buffer sound insulation blocks 6 are filled one by one into the trapezoidal cavity formed by the cooperation of the V-shaped folding plate 301, the connecting strip 402 and the connecting plate 2.

[0064] Specifically, the first sound-absorbing buffer block 5 and the second sound-absorbing buffer block 6 can be made of sound-absorbing cotton, polyurethane, polyethylene, etc., and can be adjusted according to the actual application situation without specific limitations.

[0065] By setting multiple first buffer sound insulation blocks 5 and second buffer sound insulation blocks 6, the sound insulation performance of the aluminum alloy profile is significantly improved, and additional buffering effect is provided to enhance the impact resistance of the profile, thereby improving the structural stability and service life of the profile.

[0066] In some embodiments, such as Figure 1 As shown, it also includes:

[0067] Multiple heat-insulating blocks 7 are filled one-to-one into the rectangular cavity formed by the cooperation of the I-beam 1 and the connecting plate 2.

[0068] Specifically, the heat-insulating block 7 can be made of nylon, aerogel, polyvinyl chloride, etc., and can be adjusted according to the actual application without specific limitations.

[0069] By setting up heat-insulating blocks 7, the heat conduction path in the aluminum alloy profile can be blocked, thereby reducing heat transfer and improving the heat insulation performance of the profile.

[0070] In some embodiments, such as Figure 6and Figure 7 As shown, the I-beam 1 includes a vertical plate 101 and two horizontal plates 102. The vertical plate 101 is located between the two horizontal plates 102 and has multiple hollow slots 1011 arranged at intervals along the axial direction.

[0071] By setting the hollow groove 1011, the amount of material used in the vertical plate 101 can be significantly reduced, thereby improving the lightweight effect and also reducing the heat transfer efficiency, thus improving the heat insulation effect.

[0072] Based on the above embodiments, such as Figure 7 As shown, the hollowed-out groove 1011 is an isosceles trapezoid with alternating front and back arrangements, and has a chamfer at the corner to reduce stress concentration and improve structural strength.

[0073] By setting the above, the material removal on the vertical plate 101 can be maximized, and the overall shape can be made regular to ensure uniform stress distribution, avoid stress concentration, and ensure the overall support effect and structural stability.

[0074] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A high-strength and high-toughness aluminum alloy profile, characterized in that, include: Multiple I-beams are arranged side by side at equal intervals; Two connecting plates are respectively snapped into and connected to the upper and lower sides of the I-beam; Two support plates are arranged one-to-one on the side of the connecting plate away from the I-beam; and each support plate includes a V-shaped fold plate, multiple locking blocks and multiple insert blocks. The locking blocks are arranged one-to-one at the bend of the V-shaped fold plate near the connecting plate and are engaged with the connecting plate. The insert blocks are arranged one-to-one at the bend of the V-shaped fold plate away from the connecting plate. Two outer baffles are respectively installed on the outside of the support plate; and each outer baffle includes a bent plate and connecting strips respectively disposed at both ends of the bent plate. The inner side of the bent plate has a slot adapted to the insert block. The cross-section of the connecting strip is rectangular and fits the connecting plate, and the outer side has a convex groove.

2. The high-strength and high-toughness aluminum alloy profile according to claim 1, characterized in that, The connecting plate has a plurality of first slots adapted to the I-beam, and the connecting plate has a plurality of second slots adapted to the locking block.

3. The high-strength and high-toughness aluminum alloy profile according to claim 2, characterized in that, Both the first card slot and the second card slot are isosceles trapezoids.

4. The high-strength and high-toughness aluminum alloy profile according to claim 1, characterized in that, include: Multiple first buffer sound insulation blocks are filled one-to-one into the triangular cavity formed by the cooperation of the V-shaped folding plate and the connecting plate or the bending plate; Multiple second buffer sound insulation blocks are filled one-to-one into the trapezoidal cavity formed by the cooperation of the V-shaped folding plate, the connecting strip, and the connecting plate.

5. The high-strength and high-toughness aluminum alloy profile according to claim 1, characterized in that, include: Multiple heat-insulating blocks are filled one-to-one within the rectangular cavity formed by the interlocking of the I-beam and the connecting plate.

6. The high-strength and high-toughness aluminum alloy profile according to claim 1, characterized in that, The I-beam includes a vertical plate and two horizontal plates. The vertical plate is located between the two horizontal plates and has multiple hollow slots arranged at intervals along the axial direction.

7. The high-strength and high-toughness aluminum alloy profile according to claim 6, characterized in that, The hollowed-out grooves are in the shape of an isosceles trapezoid and are arranged alternately on both sides.

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