Composite material automobile lightweight body structure

Abstract

The utility model relates to the technical field of automobile frameworks, and discloses a composite material automobile light-weight automobile body structure which comprises a first aluminum alloy square tube, the rear end of the first aluminum alloy square tube is fixedly connected with an inserting block, fixing rods movably penetrate through the left side and the right side of the inserting block, and a connecting assembly is arranged on the back face of the first aluminum alloy square tube. The connecting assembly comprises a second aluminum alloy square tube, supporting pieces are fixedly connected to the left side and the right side of the second aluminum alloy square tube, a round hole is formed in the middle of each supporting piece, an opening is formed in the front face of the second aluminum alloy square tube, and two bolts penetrate through the front face of the second aluminum alloy square tube in a threaded mode. The inserting block on the first aluminum alloy square tube is inserted into the opening in the second aluminum alloy square tube, then the fixing rod is inserted and fixed through the bolt, the first aluminum alloy square tube and the second aluminum alloy square tube are connected, operation and follow-up maintenance are facilitated, and connection is firm.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile frames, in particular to a composite material automobile lightweight body structure. Background Art

[0002] The car frame refers to the main frame that constitutes the spatial form of the car body. Low carbon, energy saving and environmental protection have gradually become the mainstream of today's automobile manufacturing. Test data show that reducing the weight of the car can effectively improve the fuel efficiency of the car and reduce emissions. In addition, reducing the weight of the car is also an important way to solve the short driving range of electric vehicles.

[0003] For example, the Chinese patent announcement number CN217672884U, "A lightweight automobile body frame structure", discloses the following technical solution: The utility model discloses a lightweight automobile body frame structure, including a crossbeam, a longitudinal beam and a connecting member. The crossbeam and the longitudinal beam are both rectangular tubular structures. The sides of both ends of the crossbeam are provided with crossbeam positioning holes, the middle part of the front side of the longitudinal beam is provided with a rectangular opening, the middle part of the front side of the longitudinal beam is also provided with a longitudinal beam positioning hole, and the longitudinal beam positioning holes are arranged on both sides of the rectangular opening. The connecting member includes two groups of L-shaped connecting plates, a crossbeam pad and two groups of longitudinal beam pads. The surfaces on both sides of the L-shaped connecting plate are provided with through holes, which relates to the field of automobile technology. By setting two groups of L-shaped connecting plates to rotate through the rectangular opening, and by using the crossbeam pad and the longitudinal beam pad in combination, it is avoided that the middle part of the longitudinal beam due to the larger opening caused by the traditional T-type connector installation, thereby affecting the supporting strength of the longitudinal beam, and ensuring the stability and firmness of the body frame. Aluminum alloy is used as the body frame material, which is light in weight and good in strength, and conforms to the lightweight design concept.

[0004] However, in actual use, after the car has been running for a certain period of time, the connecting bolts on the body frame may become loose due to the bumps of the car. When connecting, it is necessary to rely on a large number of bolts or rivets in conjunction with L-shaped connecting plates to connect the body frame. Once these bolts or rivets become loose, it will affect the stability of the body frame. At the same time, once a large number of bolts or rivets become loose, it will cause difficulties in subsequent maintenance, increase the workload of maintenance, and make it inconvenient to play the role of easy maintenance. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a composite material automobile lightweight body structure.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite material automobile lightweight body structure, comprising a first aluminum alloy square tube, a plug-in block is fixedly connected to the rear end of the first aluminum alloy square tube, fixing rods are movably penetrated on the left and right sides of the plug-in block, a concave hole is provided on the front side of the fixing rod, a connecting component is arranged on the back side of the first aluminum alloy square tube, and the connecting component comprises a second aluminum alloy square tube, a supporting plate is fixedly connected to the left and right sides of the second aluminum alloy square tube, a circular hole is provided in the middle of the supporting plate, an opening is provided on the front side of the second aluminum alloy square tube, bolts are threadedly penetrated on the front side of the second aluminum alloy square tube, the number of the bolts is two, a protective component is arranged on the outer surface of the second aluminum alloy square tube, and a driving component is arranged above the second aluminum alloy square tube.

[0009] Preferably, the opening is matched with the plug-in block, the round hole is matched with the fixing rod, and the concave hole is matched with the bolt.

[0010] Preferably, the protection component comprises a fixed frame, the fixed frame is movably fitted with the outer surface of the second aluminum alloy square tube, a top plate is fixedly connected to the inner surface of the fixed frame, and an adjustment block is fixedly connected to the top of the fixed frame.

[0011] Preferably, the driving assembly includes a support sleeve, which is fixedly connected to the top of the second aluminum alloy square tube, and the inner surface of the support sleeve is rotatably connected to a rotating column, a first screw is fixedly connected to the left side of the rotating column, and a second screw is fixedly connected to the right side of the rotating column, and support assemblies are arranged on the left and right sides of the driving assembly.

[0012] Preferably, the number of the protection components is two groups, which are respectively arranged on the two bolts, wherein the adjustment blocks in the two groups of the protection components are respectively threadedly sleeved on the outer surfaces of the first screw rod and the second screw rod.

[0013] Preferably, the support assembly includes a support plate, which is fixedly connected to the top of the second aluminum alloy square tube. The inner surface of the support plate is rotatably connected to a rotating shaft. There are two support plates and rotating shafts, and the two rotating shafts are respectively fixedly connected to the left side of the first screw and the right side of the second screw.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a composite material automobile lightweight body structure, which has the following beneficial effects:

[0016] 1. A composite material automobile lightweight body structure is provided, wherein the first aluminum alloy square tube is connected to the second aluminum alloy square tube by inserting a plug-in block on the first aluminum alloy square tube into an opening on the second aluminum alloy square tube, and then inserting a fixing rod and fixing it with bolts, so that operation and subsequent maintenance are facilitated and the connection is firm.

[0017] 2. In this composite material automobile lightweight body structure, when the first aluminum alloy square tube is connected to the second aluminum alloy square tube, the driving component drives the protective component to slide to cover the bolts, thereby playing a protective role and preventing the bolts from loosening and falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a left view of the overall structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall structure installation state of the utility model.

[0022] In the figure: 1. first aluminum alloy square tube; 2. plug-in block; 3. fixing rod; 4. recessed hole; 5. connecting assembly; 501. second aluminum alloy square tube; 502. support plate; 503. round hole; 504. opening; 505. bolt; 6. protection assembly; 601. fixing frame; 602. top plate; 603. adjusting block; 7. driving assembly; 701. supporting sleeve; 702. rotating column; 703. first screw; 704. second screw; 8. supporting assembly; 801. supporting plate; 802. rotating shaft. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1

[0025] like Figure 1-3As shown, the utility model provides a composite material automobile lightweight body structure, including a first aluminum alloy square tube 1, a plug-in block 2 is fixedly connected to the rear end of the first aluminum alloy square tube 1, and a fixing rod 3 is movably penetrated on the left and right sides of the plug-in block 2, and the fixing rod 3 passes through the left and right sides of the plug-in block 2. A through hole for the fixing rod 3 to pass through is opened on the plug-in block 2, and a concave hole 4 is opened on the front of the fixing rod 3. The number of the concave holes 4 is two, and the inner surface of the concave holes 4 is smooth. A connecting component 5 is arranged on the back of the first aluminum alloy square tube 1, and the connecting component 5 includes a second aluminum alloy square tube 501, and the second aluminum alloy square tube 501 is connected to the left side of the plug-in block 2. A support plate 502 is fixedly connected on the right two sides, a circular hole 503 is opened in the middle of the support plate 502, an opening 504 is opened on the front side of the second aluminum alloy square tube 501, a bolt 505 is threaded through the front side of the second aluminum alloy square tube 501, and the number of bolts 505 is two, which respectively correspond to the two recessed holes 4 on the fixing rod 3, the opening 504 is adapted to the plug-in block 2, the circular hole 503 is adapted to the fixing rod 3, and the recessed hole 4 is adapted to the bolt 505. A protective component 6 is arranged on the outer surface of the second aluminum alloy square tube 501, and a driving component 7 is arranged above the second aluminum alloy square tube 501.

[0026] In this embodiment, when it is necessary to connect the first aluminum alloy square tube 1 and the second aluminum alloy square tube 501 in the vehicle body frame, first insert the plug-in block 2 on the first aluminum alloy square tube 1 into the opening 504 on the second aluminum alloy square tube 501. At this time, pass the fixing rod 3 through the circular hole 503 on the support plate 502, and then continue to insert it until it passes through the plug-in block 2 and comes out of the other support plate 502. At this time, rotate the fixing rod 3 to face the recessed hole 4 to the front, and tighten the bolt 505. The bolt 505 will support the inside of the recessed hole 4 to fix the fixing rod 3, thereby firmly fixing the plug-in block 2 on the inner surface of the second aluminum alloy square tube 501.

[0027] Example 2

[0028] like Figure 1-3As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the protection component 6 includes a fixed frame 601, the inner surface of the fixed frame 601 is fitted with the second aluminum alloy square tube 501 on three sides, and only a gap is left with the front of the second aluminum alloy square tube 501, the fixed frame 601 is movably fitted with the outer surface of the second aluminum alloy square tube 501, the inner surface of the fixed frame 601 is fixedly connected with a top sheet 602, the top sheet 602 is made of rubber, the upper part of the fixed frame 601 is fixedly connected with an adjustment block 603, and the adjustment block 603 is provided with a threaded through hole, the driving component 7 includes a support sleeve 701, the support sleeve 701 is fixedly connected with the upper part of the second aluminum alloy square tube 501, and the inner surface of the support sleeve 701 is rotatably connected with a rotating column 702, A first screw rod 703 is fixedly connected to the left side of the rotating column 702, and a second screw rod 704 is fixedly connected to the right side of the rotating column 702. Support assemblies 8 are arranged on the left and right sides of the driving assembly 7. The support assembly 8 includes a support plate 801, and the support plate 801 is fixedly connected to the top of the second aluminum alloy square tube 501. A rotating shaft 802 is rotatably connected to the inner surface of the support plate 801. There are two support plates 801 and rotating shafts 802. The two rotating shafts 802 are respectively fixedly connected to the left side of the first screw rod 703 and the right side of the second screw rod 704. There are two groups of protective assemblies 6, which are respectively arranged on two bolts 505, and the adjustment blocks 603 in the two groups of protective assemblies 6 are respectively threadedly sleeved on the outer surfaces of the first screw rod 703 and the second screw rod 704.

[0029] In this embodiment, when the first aluminum alloy square tube 1 is fixed to the second aluminum alloy square tube 501, the first screw 703 or the second screw 704 is driven to rotate by rotating the rotating shaft 802 on the supporting plate 801. When the first screw 703 or the second screw 704 rotates, it will drive the other screw to rotate under the action of the rotating column 702. The rotation of the first screw 703 and the second screw 704 will drive the adjusting block 603 to make the two fixed frames 601 slide until the top plate 602 on the fixed frame 601 supports the bolt 505. At this time, the fixed frame 601 will cooperate with the top plate 602 to clamp the bolt 505 to achieve a protective effect and prevent the bolt 505 from loosening or falling off.

Claims

1. A composite material automobile lightweight body structure, comprising a first aluminum alloy square tube (1), characterized in that: The rear end of the first aluminum alloy square tube (1) is fixedly connected to a plug-in block (2), and fixed rods (3) are movably penetrated on the left and right sides of the plug-in block (2), and a concave hole (4) is provided on the front of the fixed rod (3). A connecting component (5) is arranged on the back of the first aluminum alloy square tube (1), and the connecting component (5) comprises a second aluminum alloy square tube (501), and the left and right sides of the second aluminum alloy square tube (501) are fixedly connected to support plates (502), and a circular hole (503) is provided in the middle of the support plate (502). An opening (504) is provided on the front of the second aluminum alloy square tube (501), and bolts (505) are threadedly penetrated on the front of the second aluminum alloy square tube (501), and the number of the bolts (505) is two. A protective component (6) is arranged on the outer surface of the second aluminum alloy square tube (501), and a driving component (7) is arranged above the second aluminum alloy square tube (501).

2. A composite material automobile lightweight body structure according to claim 1, characterized in that: The opening (504) is matched with the plug-in block (2), the round hole (503) is matched with the fixing rod (3), and the concave hole (4) is matched with the bolt (505).

3. The composite material automobile lightweight body structure according to claim 1, characterized in that: The protection component (6) comprises a fixing frame (601), the fixing frame (601) is movably fitted with the outer surface of the second aluminum alloy square tube (501), the inner surface of the fixing frame (601) is fixedly connected to a top sheet (602), and the upper part of the fixing frame (601) is fixedly connected to an adjustment block (603).

4. The composite material automobile lightweight body structure according to claim 1, characterized in that: The driving assembly (7) comprises a supporting sleeve (701), wherein the supporting sleeve (701) is fixedly connected to the top of the second aluminum alloy square tube (501), a rotating column (702) is rotatably connected to the inner surface of the supporting sleeve (701), a first screw rod (703) is fixedly connected to the left side of the rotating column (702), and a second screw rod (704) is fixedly connected to the right side of the rotating column (702), and supporting assemblies (8) are arranged on the left and right sides of the driving assembly (7).

5. The composite material automobile lightweight body structure according to claim 3, characterized in that: The number of the protection components (6) is two groups, which are respectively arranged on the two bolts (505), wherein the adjustment blocks (603) in the two groups of the protection components (6) are respectively threadedly sleeved on the outer surfaces of the first screw rod (703) and the second screw rod (704).

6. The composite material automobile lightweight body structure according to claim 4, characterized in that: The support assembly (8) comprises a support plate (801), wherein the support plate (801) is fixedly connected to the top of the second aluminum alloy square tube (501), and a rotating shaft (802) is rotatably connected to the inner surface of the support plate (801). There are two support plates (801) and two rotating shafts (802), and the two rotating shafts (802) are fixedly connected to the left side of the first screw rod (703) and the right side of the second screw rod (704), respectively.

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