A double-decked frame structure

Abstract

The utility model relates to the technical field of automobile, provide a double -deck frame structure, include: two crossbeam, still include: connecting assembly, set up in the inside of two crossbeam, connecting assembly include: support frame, set up in the inside of two crossbeam, four flange spare, all fixed settings the outside of support frame, wherein two flange spare all movably cover set in the outer surface of crossbeam, two longitudinal beams, all movably embed another two flange spare's inside, the utility model discloses, when using, through the setting of support frame and crossbeam structure, not only make personnel only need to embed each component according to the order, and through bolt fixed, whole installation process is relatively simple, has saved installation time and energy, and support frame is fixed in the inside of crossbeam and longitudinal beam, provides additional support force for the frame, improves the torsional strength and the bending capacity of structure. This makes the structure not easy to bend or twist when bearing larger external load.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a double-layer vehicle frame structure. Background Technology

[0002] A double-layer frame structure is a type of frame structure used in automotive design. It typically consists of two layers, referred to as the "upper layer" and the "lower layer," which together support and bear the weight of the vehicle and ensure the strength, rigidity, safety, and comfort of the entire vehicle. In the prior art, such as Chinese Patent No. CN205971486U, this utility model discloses an electric vehicle subframe structure, including a front subframe (1) and a rear subframe (2). The main structural components of both the front subframe (1) and the rear subframe (2) are made of aluminum alloy profiles, which are connected by welding or by threaded connectors. Using the above technical solution, which employs hollow aluminum alloy profiles, the overall weight is small, the strength is high, and the structural safety performance is superior, meeting the requirements for installation and connection; it is beneficial for the lightweighting of electric vehicles and can effectively extend the driving range of electric vehicles.

[0003] While the above-mentioned solutions have the advantages mentioned above, the rectangular shape of the frame design helps to improve the stability and torsional rigidity of the vehicle body, thereby ensuring the stability of the vehicle during high-speed driving and cornering. However, the hollow design of the subframe—that is, the central part of the subframe is not filled with a solid structure but has space—may pose certain safety hazards in actual use. In the event of a collision, the hollow subframe structure may result in insufficient impact resistance in local areas, especially in frontal or side collisions. The vehicle structure may not be able to effectively disperse the impact force, leading to local deformation of the vehicle body and increasing the risk of injury to the occupants. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the hollow design of the subframe in the prior art may lead to insufficient impact resistance in local areas, especially in the event of a frontal or side collision, where the vehicle structure cannot effectively disperse the impact force, resulting in local deformation of the vehicle body.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a double-layer frame structure, comprising: two crossbeams, and further comprising: A connecting assembly, disposed on the inner side of the two crossbeams, comprising: The support frame is located inside the two crossbeams; All four flanges are fixedly installed on the outside of the support frame; Both of the flanges are movably fitted onto the outer surface of the crossbeam; Both longitudinal beams are movably embedded inside the other two flange components; All four first bolts are threaded into the inside of the flange; Four first threaded grooves are formed inside the two crossbeams and two longitudinal beams; Among them, all four first bolts are matched with the first threaded groove; A reinforcing component is located inside the crossbeam.

[0006] In a preferred embodiment, the connection component further includes: Both sides of the interior of the two crossbeams are provided with positioning grooves, and both sides of the outer surface of the two longitudinal beams are fixedly provided with positioning posts. All four positioning pins are matched with the positioning slots.

[0007] The technical effect of adopting the above-mentioned further solution is that the longitudinal beam can be positioned by the cooperation of the positioning column and the positioning groove.

[0008] In a preferred embodiment, the connection component further includes: Multiple connectors are divided into two groups, and both groups of connectors are fixedly installed on the outer surface of the longitudinal beam. Multiple second threaded grooves are formed inside the positioning post.

[0009] The technical effect of adopting the above-mentioned further solution is that the lower control arm can be connected to the frame through the connector.

[0010] In a preferred embodiment, the connection component further includes: Multiple second bolts are divided into two groups, and both groups of second bolts are threaded into the inside of the crossbeam. Among them, multiple second bolts are matched with the second threaded groove.

[0011] The technical effect of adopting the above-mentioned further solution is that the second bolt can be rotated so that it can be embedded into the interior of the second threaded groove.

[0012] In a preferred embodiment, the reinforcement component includes: Four triangular irons are movably connected to the inside of the two crossbeams and the two longitudinal beams; The four first slots are divided into two groups, and the first slots in both groups are located inside the crossbeam.

[0013] The technical effect of adopting the above-mentioned further solution is that the crossbeams and longitudinal beams can be reinforced by using triangular iron.

[0014] In a preferred embodiment, the reinforcement component further includes: Two locking blocks are fixedly installed on the outer side of each of the four triangular irons, and four of the locking blocks match the first locking slot.

[0015] The technical effect of adopting the above-mentioned further solution is that it allows the card block to be embedded into the first card slot.

[0016] In a preferred embodiment, the reinforcement component further includes: The four second slots are divided into two groups, and both groups of the second slots are opened inside the longitudinal beam. The other four card blocks all match the second card slot.

[0017] The technical effect of adopting the above-mentioned further solution is that it allows the card block to be embedded into the second card slot.

[0018] In a preferred embodiment, the reinforcement component further includes: The two crossbeams and the two longitudinal beams each have a third threaded groove on both sides of their interior. Each of the four triangular iron pieces has two third bolts threaded onto its internal sides. All eight third bolts are matched with the third threaded groove.

[0019] The technical effect of adopting the above-mentioned further solution is that the third bolt can be rotated so that it can be embedded into the interior of the third threaded groove to fix the triangular iron.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In use, this utility model, through the arrangement of the support frame and crossbeam structure, not only simplifies the installation process by requiring only the sequential insertion of each component and its fixing with bolts, saving installation time and effort, but also provides additional support to the frame by fixing the support frame to the inner side of the crossbeams and longitudinal beams, thus improving the structure's torsional and bending resistance. This makes the structure less prone to bending or twisting under large external loads, solving the problem in existing technologies where the subframe is hollow, potentially leading to insufficient impact resistance in localized areas, especially in frontal or side collisions where the vehicle structure cannot effectively disperse the impact force, resulting in localized deformation of the vehicle body.

[0021] 2. In use, the design of the triangular iron and the locking block structure not only enhances the connection strength between the crossbeam and the longitudinal beam, but also further improves the bending and shear resistance of the entire structure, making it particularly suitable for applications that bear large-scale or dynamic loads. Attached Figure Description

[0022] Figure 1This is a rear-view three-dimensional structural diagram of a double-layer frame structure proposed in this utility model; Figure 2 This is a partial three-dimensional structural diagram of a double-layer frame structure proposed in this utility model. Figure 1 ; Figure 3 This is a partial three-dimensional structural diagram of a double-layer frame structure proposed in this utility model. Figure 2 ; Figure 4 This is a partial three-dimensional structural diagram of a double-layer frame structure proposed in this utility model. Figure 3 .

[0023] Legend: 1. Crossbeam; 101. Longitudinal beam; 102. Support frame; 103. Flange; 104. First bolt; 105. First threaded groove; 106. Positioning groove; 107. Positioning post; 108. Connector; 109. Second bolt; 110. Second threaded groove; 2. Triangle iron; 201. First slot; 202. Locking block; 203. Second slot; 204. Third bolt; 205. Third threaded groove. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1, as Figures 1-4 As shown, this utility model provides a double-layer frame structure, including two crossbeams 1, a connecting component, and a reinforcing component; The inner sides of the two crossbeams 1 are provided with support frames 102, and flanges 103 are fixedly installed on all four sides of the outer side of the support frames 102. In this design, the combination of support frames 102 and flanges 103 can provide additional support and rigidity, and enhance the load-bearing capacity of the crossbeams 1. The flanges 103 are fixedly installed on the outer side of the support frames 102, which further enhances the stability of the structure. The two flanges 103 are movably sleeved on the outer surface of the crossbeams 1, and the longitudinal beams 101 are movably embedded inside the two flanges 103. It should be noted that the two crossbeams 1 and the two longitudinal beams 101 can form a rectangular frame, while the support frame 102 is cross-shaped; All four flanges 103 are internally threaded with first bolts 104. The interiors of the two crossbeams 1 and the two longitudinal beams 101 are all provided with first threaded grooves 105. All four first bolts 104 are matched with the first threaded grooves 105. The interiors of the two crossbeams 1 are provided with two positioning grooves 106 on both sides. In this design, the cooperation between the positioning grooves 106 and the positioning posts 107 ensures that the crossbeams 1 and the longitudinal beams 101 can be accurately aligned during installation, avoiding misalignment or improper installation. The two longitudinal beams 101 are fixedly installed with positioning posts 107 on both sides. All four positioning posts 107 are matched with the positioning grooves 106. In addition, connectors 108 are fixedly installed on both sides of the two longitudinal beams 101, and the connectors 108 are used to connect with the lower control arm. The interior of each of the four positioning posts 107 is provided with a second threaded groove 110, and the interior sides of the two crossbeams 1 are threaded with second bolts 109. In this design, the threaded connection method can provide a strong fastening force, ensuring the firmness of the connection and effectively preventing the components from loosening or misaligning during use. The four second bolts 109 are all matched with the second threaded grooves 110.

[0027] In this embodiment, after the two crossbeams 1 are fixed on the support frame 102, the operator picks up the two longitudinal beams 101 and embeds them into the left and right flanges 103 respectively, while the positioning pin 107 is embedded into the positioning groove 106. Then the operator can rotate the second bolt 109 so that it can be embedded into the second threaded groove 110 inside the positioning pin 107 to fix the crossbeams 1 and longitudinal beams 101.

[0028] Example 2, as Figures 1-4 As shown, the reinforcement components include: four triangular irons 2 movably connected to the inner sides of two crossbeams 1 and two longitudinal beams 101. In this design, the triangular irons 2 serve as reinforcement components, effectively dispersing and transmitting stress points, avoiding excessive local stress, which could lead to beam deformation or instability. The triangular structure has excellent mechanical advantages in physics, effectively enhancing the bending and shear resistance of the overall frame. The outer surfaces of the four triangular irons 2 are fixedly equipped with locking blocks 202 on both sides. The inner sides of the two crossbeams 1 are provided with first locking slots 201, and the inner sides of the two longitudinal beams 101 are provided with second locking slots 203. It should be noted that four of the card blocks 202 are matched with the first card slot 201, while the other four card blocks 202 are matched with the second card slot 203; The two crossbeams 1 and the two longitudinal beams 101 are provided with third threaded grooves 205 on both sides of the interior. The four triangular irons 2 are threaded with third bolts 204 on both sides of the interior. All eight third bolts 204 are matched with the third threaded grooves 205.

[0029] In this embodiment, after the triangular iron 2 is installed on the inner side of the crossbeam 1 and the longitudinal beam 101, the operator can rotate the third bolt 204 so that it can be embedded into the interior of the third threaded groove 205 to fix the triangular iron 2 to the inner wall of the crossbeam 1 and the longitudinal beam 101 and reinforce it.

[0030] Working Principle: In use, the operator first inserts the two crossbeams 1 into the front and rear flanges 103 of the support frame 102, and rotates the first bolt 104 to insert it into the first threaded groove 105 inside the crossbeam 1, thus fixing the two crossbeams 1 to the support frame 102. Then, the operator lifts the longitudinal beam 101 and inserts it into the left and right flanges 103, fixing it to the crossbeam 1 with the second bolt 109. Afterward, the operator rotates the other two first bolts 104 to insert them into the first threaded groove 105 inside the longitudinal beam 101, fixing the longitudinal beam 101 to the support frame 102. This structural design of the support frame 102 and crossbeams 1 simplifies the installation process by requiring only sequential insertion of components and bolt fixation, saving time and effort. Simultaneously, the support frame 102, fixed to the inner side of the crossbeams 1 and longitudinal beams 101, provides additional support to the frame, improving the structure's torsional and bending resistance. This makes the structure less prone to bending or twisting under large external loads. In use, after the crossbeam 1 and the longitudinal beam 101 are fixed, the operator can press down on the triangular iron 2 so that it can slide downward against the inner surface of the crossbeam 1 and the longitudinal beam 101, and the locking block 202 can be embedded into the first locking groove 201 and the second locking groove 203 to fix the triangular iron 2 and reinforce the crossbeam 1 and the longitudinal beam 101. Through the structure of the triangular iron 2 and the locking block 202, not only is the connection strength of the crossbeam 1 and the longitudinal beam 101 enhanced, but the bending and shear resistance of the entire structure is also further improved, making it particularly suitable for application environments that bear large-scale or dynamic loads.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A double-layer frame structure, comprising: The two crossbeams (1) are characterized in that they further include: A connecting assembly is disposed on the inner side of the two crossbeams (1), the connecting assembly comprising: The support frame (102) is set inside the two crossbeams (1); Four flanges (103) are fixedly installed on the outside of the support frame (102); Two of the flanges (103) are movably fitted onto the outer surface of the crossbeam (1); Both longitudinal beams (101) are movably embedded inside the other two flanges (103); The four first bolts (104) are all threaded into the inside of the flange (103); Four first threaded grooves (105) are formed inside the two crossbeams (1) and the two longitudinal beams (101); Among them, the four first bolts (104) are all matched with the first threaded groove (105); A reinforcing component is disposed inside the crossbeam (1).

2. The double-layer frame structure according to claim 1, characterized in that: The connection component also includes: The two crossbeams (1) have positioning grooves (106) on both sides of their interior, and the two longitudinal beams (101) have positioning posts (107) fixedly installed on both sides of their outer surface. Among them, the four positioning pins (107) are all matched with the positioning grooves (106).

3. The double-layer frame structure according to claim 2, characterized in that: The connection component also includes: Multiple connectors (108) are divided into two groups, and both groups of connectors (108) are fixedly installed on the outer surface of the longitudinal beam (101); Multiple second threaded grooves (110) are formed inside the positioning post (107).

4. A double-layer frame structure according to claim 3, characterized in that: The connection component also includes: Multiple second bolts (109) are divided into two groups, and both groups of second bolts (109) are threaded into the interior of the crossbeam (1); Among them, multiple second bolts (109) are matched with the second threaded groove (110).

5. A double-layer frame structure according to claim 1, characterized in that: The reinforcement components include: Four triangular irons (2) are movably connected to the inside of two crossbeams (1) and two longitudinal beams (101); The four first slots (201) are divided into two groups, and the first slots (201) in both groups are opened inside the crossbeam (1).

6. A double-layer frame structure according to claim 5, characterized in that: The reinforcement components also include: Two locking blocks (202) are fixedly installed on the outer side of each of the four triangular irons (2), and the four locking blocks (202) match the first locking slot (201).

7. A double-layer frame structure according to claim 6, characterized in that: The reinforcement components also include: The four second slots (203) are divided into two groups, and both groups of the second slots (203) are opened inside the longitudinal beam (101); The other four card blocks (202) are all matched with the second card slot (203).

8. A double-layer frame structure according to claim 7, characterized in that: The reinforcement components also include: The two crossbeams (1) and the two longitudinal beams (101) are provided with a third threaded groove (205) on both sides of their interior. Each of the four triangular irons (2) has two third bolts (204) threaded on both sides of its interior. All eight third bolts (204) are matched with the third threaded groove (205).

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