High-rigidity impact-resistant truck frame lightweight structure

Abstract

The invention discloses a high-rigidity impact-resistant truck frame lightweight structure, and relates to the technical field of truck frames, the high-rigidity impact-resistant truck frame lightweight structure comprises a mounting rack I and a mounting rack II, and one side of the mounting rack I and one side of the mounting rack II are fixedly connected with a splice plate I and a splice plate II respectively. According to the invention, the limiting bolt is in bolted connection with the limiting piece, the limiting piece is in bolted connection with the buffering piece, the buffering piece can be mounted and dismounted between the mounting rack I and the mounting rack II through the limiting piece, the buffering rod I and the buffering piece can be used for buffering and protecting the two sides of the frame, and the damage and deformation of the frame during use are reduced; normal use of the frame body can be guaranteed, when the first buffer rod and the buffer piece deform seriously, the first buffer rod and the buffer piece can be rapidly replaced, the whole frame does not need to be disassembled, operation is convenient, interference to other structures of the frame can be reduced, the supporting plate can guide movement of the hinge piece, the buffering effect on the bottom of the top plate is improved, and damage to the top of the frame is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of truck frames, in particular to a high-rigidity, impact-resistant truck frame lightweight structure. Background Art

[0002] The frame is a frame structure that spans the front and rear axles of the car, commonly known as the beam, which is the base of the car. It is generally composed of two longitudinal beams and several cross beams, supported on the wheels through the suspension device, front axle and rear axle. The truck frame is a frame structure that spans the front and rear axles of the truck.

[0003] For example, Chinese patent CN210310556U discloses an electric light truck frame, comprising: a truss frame body, an equipment compartment arranged at the front end of the truss frame body, and a power battery compartment arranged in the middle of the truss frame body; the truss frame body is formed by 30 to 35 rectangular square tubes connected in an interlaced manner, and also includes a tail end compartment arranged at the rear end of the truss frame body, and the tail end compartment is arranged along the radial direction of the truss frame body.

[0004] In the above patent, although the problem of using brackets to install accessories is solved by using a truss-type frame body, the truss-type frame body is welded as a whole. When a single square tube of the frame is deformed by force, it cannot be disassembled and replaced separately, and the entire frame needs to be replaced, which increases the difficulty of frame maintenance. Summary of the invention

[0005] The object of the present invention is to provide a high-rigidity, impact-resistant, lightweight truck frame structure to solve the problem that the truss-type frame body proposed in the above-mentioned background technology is made of integrally welded components, and when a single square tube of the frame is deformed by force, it cannot be disassembled and replaced individually, and the entire frame needs to be replaced, which increases the difficulty of frame maintenance.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high-rigidity impact-resistant truck frame lightweight structure, comprising a mounting frame 1 and a mounting frame 2, wherein one side of the mounting frame 1 and the mounting frame 2 are respectively fixedly connected with a splicing plate 1 and a splicing plate 2, wherein the splicing plate 1 and the splicing plate 2 are connected by bolts, and one side of the mounting frame 1 and the mounting frame 2 is connected with a mounting piece by bolts, and one side of the mounting piece is fixedly connected with a side plate, and one side of the side plate is provided with an auxiliary mechanism; The auxiliary mechanism includes a mounting plate, a buffer member and a fixing rod, one side of the mounting plate is fixedly connected with a fixing rod and an L-shaped rod respectively, the other ends of the L-shaped rod and the fixing rod are fixedly connected with a connecting member, a buffer rod 1 is inserted through the inside of the connecting member, one side of the buffer rod 1 is fixedly connected to the buffer member, one side of the buffer member is fixedly connected with a cross bar, one end of the cross bar is fixedly connected to buffer rod 1, and one side of the buffer member is connected to a limiting member by a bolt, one end of the limiting member passes through the mounting frame 1 and the mounting frame 2 respectively, and the limiting member and the mounting frame 1 and the mounting frame 2 are connected with a limiting bolt by a thread.

[0007] Preferably, the top of the side plate is fixedly connected to a support plate, both sides of the support plate are fixedly connected to limit plates, one side of the limit plate is slidably connected to a trapezoidal plate, and the bottom of the trapezoidal plate is snap-connected to the side plate.

[0008] Preferably, a vertical rod is fixedly connected to the bottom of the trapezoidal plate, an oblique rod 1 is fixedly connected to one side of the vertical rod, and a top of the oblique rod 1 is fixedly connected to the trapezoidal plate.

[0009] Preferably, a built-in plate is clamped on one side of the side panel, a support rod is fixedly connected to the top of the built-in plate, a square rod is clamped on one side of the side panel, and reinforcing rod one and reinforcing rod two are inserted through the square rod and the built-in plate, and the two ends of the reinforcing rod one and reinforcing rod two are respectively connected to the mounting frame one and the mounting frame two.

[0010] Preferably, one side of the square rod is fixedly connected with an auxiliary component 2, the top of the auxiliary component 2 is plugged into the vertical rod, one side of the auxiliary component 2 is clamped with an oblique rod 2, and one side of the oblique rod 2 is clamped with a clamping block.

[0011] Preferably, one side of the locking block is fixedly connected with an auxiliary component 1, and the auxiliary component 1 is penetrated by a reinforcement rod 2.

[0012] Preferably, a buffer assembly is arranged above the second reinforcement rod, and the buffer assembly includes a top plate, a hinge and a guide plate, the bottom of the top plate is fixedly connected to the guide plate, and one side of the guide plate is slidably connected to the limit plate.

[0013] Preferably, one end of a second buffer rod is fixedly connected to the bottom of the top plate, and the bottom of the second buffer rod is connected to the support plate by bolts.

[0014] Preferably, an auxiliary rod is hinged to the bottom of the top plate, the bottom of the auxiliary rod is hinged to a hinge, and the bottom of the hinge is slidably connected to the support plate.

[0015] Preferably, a mounting hole is provided at the top of the top plate, and a slot is provided at the bottom of the top plate, and the slot is engaged and connected with the top of the support rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the limit bolt is connected with the limit member by bolts, and the limit member and the buffer member are connected by bolts. The limit member can be used to realize the installation and disassembly of the buffer member between the mounting frame 1 and the mounting frame 2. The buffer rod 1 and the buffer member can provide buffer protection for both sides of the frame, reduce damage and deformation of the frame during use, and ensure the normal use of the frame body. When the buffer rod 1 and the buffer member are severely deformed, they can be quickly replaced without disassembling the entire frame. The operation is relatively convenient, the difficulty of frame maintenance is reduced, and interference with other structures of the frame can be reduced.

[0017] In the present invention, the support plate is fixedly connected to the limit plate, and the bottom of the limit plate is fixedly connected to the side plate. The bottom of the trapezoidal plate is engaged with the side plate to guide the installation of the side plate, thereby realizing the connection between the vertical rod and the auxiliary component 2. The two sides of the auxiliary component 2 are connected to the auxiliary component 1 through the oblique rod 2. The connection between the reinforcement rod 1 and the reinforcement rod 2 can be reinforced by the oblique rod 2. The built-in plate and the square rod can be used to support one side of the side plate, thereby improving the overall high longitudinal torsional stiffness and impact resistance of the frame.

[0018] 3. In the present invention, the top of the support rod is engaged with the top plate, and the guide plate and the limit plate are slidably connected. The support rod can be used to guide the installation of the top plate on the top of the support plate. The bottom of the top plate can be buffered by compression of the buffer rod 2. When the inclination angle of the auxiliary rod changes, the support plate can guide the movement of the hinge, thereby improving the stability of the hinge when moving along the support plate, thereby improving the buffering effect on the bottom of the top plate, reducing damage to the top of the frame, and ensuring the service life of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a high-rigidity, impact-resistant, and lightweight truck frame structure of the present invention; Figure 2 A schematic structural diagram of a buffer rod of a lightweight structure of a high-rigidity impact-resistant truck frame according to the present invention; Figure 3 This is a schematic diagram of the installation of a guide plate structure of a lightweight structure of a high-rigidity, impact-resistant truck frame according to the present invention; Figure 4 A schematic diagram of the connection structure between an auxiliary rod and a hinged member of a lightweight structure of a high-rigidity impact-resistant truck frame according to the present invention; Figure 5 This is a schematic diagram of the installation of a support rod structure of a lightweight structure of a high-rigidity impact-resistant truck frame according to the present invention; Figure 6 A schematic diagram of a structural connection between a vertical rod and an oblique rod of a lightweight structure of a high-rigidity impact-resistant truck frame of the present invention; Figure 7 This is a schematic diagram of the installation of the auxiliary component 2 of the lightweight structure of a high-rigidity impact-resistant truck frame of the present invention.

[0020] In the figure: 1. Mounting frame one; 11. Splicing plate one; 2. Auxiliary mechanism; 21. Mounting plate; 22. Limiting member; 23. Buffer member; 24. L-shaped rod; 25. Buffer rod one; 26. Connecting member; 27. Fixing rod; 28. Crossbar; 29. ​​Limiting bolt; 3. Mounting frame two; 31. Splicing plate two; 4. Side plate; 41. Trapezoidal plate; 42. Limiting plate; 43. Support plate; 44. Built-in plate; 45. Support rod; 46. Mounting member; 47. Vertical rod; 48. Diagonal rod one; 5. Buffer assembly; 51. Top plate; 52. Auxiliary rod; 53. Hinge; 54. Buffer rod two; 55. Guide plate; 6. Reinforcement rod one; 61. Square rod; 62. Diagonal rod two; 63. Reinforcement rod two; 64. Auxiliary member one; 65. Clamping block; 66. Auxiliary member two. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 - Figure 7 As shown: a high-rigidity impact-resistant truck frame lightweight structure, including a mounting frame 1 and a mounting frame 2 3, the mounting frame 1 and the mounting frame 2 3 are respectively fixedly connected with a splicing plate 11 and a splicing plate 2 31 on one side, the splicing plate 11 and the splicing plate 2 31 are connected by bolts, the mounting frame 1 and the mounting frame 2 3 are connected with a mounting member 46 on one side by bolts, the mounting member 46 is fixedly connected with a side plate 4 on one side, and an auxiliary mechanism 2 is arranged on one side of the side plate 4; the auxiliary mechanism 2 includes a mounting plate 21, a buffer member 23 and a fixing rod 27, and the mounting plate 21 is respectively fixedly connected with a The fixing rod 27 and the L-shaped rod 24, the other ends of the L-shaped rod 24 and the fixing rod 27 are fixedly connected with a connecting piece 26, a buffer rod 25 is inserted through the inside of the connecting piece 26, one side of the buffer rod 25 is fixedly connected to the buffer 23, one side of the buffer 23 is fixedly connected to a cross bar 28, one end of the cross bar 28 is fixedly connected to the buffer rod 25, and one side of the buffer 23 is connected to a limiting piece 22 by bolts, one end of the limiting piece 22 passes through the mounting frame 1 and the mounting frame 2 3 respectively, and the limiting piece 22 and the mounting frame 1 and the mounting frame 2 3 are connected by a threaded limit bolt 29.

[0023] In this example, threaded holes are provided on both the splicing plate 11 and the splicing plate 2 31. The splicing plate 11 and the splicing plate 2 31 are connected by bolts to realize the connection between the two frames, thereby assisting the splicing of multiple frames and adjusting the use length of the frame to facilitate matching with trucks of different sizes. The mounting member 46 can assist the side panel 4 to be connected to the mounting frame 1 and the mounting frame 2 3 respectively, and then the side panel 4 is used to realize the connection between the mounting frame 1 and the mounting frame 2 3 to form the basic framework of the frame. The limiting bolt 29 can limit the installation position of the limiting member 22 inside the mounting frame 1 and the mounting frame 2 3, reduce the looseness of the limiting member 22, and thereby improve the stability of the buffer member 23 when connected to the limiting member 22, so that the buffer member 23 can be stably installed on one side of the side panel 4, so that the buffer member 23 is used to buffer and protect one side of the side panel 4, reduce the impact of external force on the side panel 4, and thereby reduce the deformation and damage of the side panel 4; At the same time, a triangular structure is formed between the L-shaped rod 24 and the fixing rod 27, which can support one side of the mounting plate 21 and improve the stability of the mounting plate 21 during installation and use. One end of the buffer rod 25 is connected to the cross bar 28, and the end of the buffer rod 25 can be reinforced by the cross bar 28. The buffer rod 25 is in a bent state and has a certain deformation amount, so that one side of the mounting plate 21 can be initially buffered. After the initial buffering by the buffer rod 25, the buffer component 23 can buffer the external force exerted on the mounting plate 21 again, thereby avoiding direct contact between the external force and the side panel 4, reducing the deformation caused by the force on the side panel 4, and ensuring the normal use of the frame. After the buffer rod 25 and the buffer component 23 are damaged and deformed, the buffer rod 25 and the buffer component 23 can be disassembled and replaced separately, which will not affect the normal use of other parts of the frame and there is no need to disassemble the frame as a whole, which is relatively convenient to operate.

[0024] Embodiment 2: According to Figure 1 - Figure 7 As shown, the top of the side panel 4 is fixedly connected to a support plate 43, both sides of the support plate 43 are fixedly connected to a limit plate 42, one side of the limit plate 42 is slidably connected to a trapezoidal plate 41, the bottom of the trapezoidal plate 41 is snap-connected with the side panel 4, the bottom of the trapezoidal plate 41 is fixedly connected to a vertical rod 47, one side of the vertical rod 47 is fixedly connected to an oblique rod 48, the top of the oblique rod 48 is fixedly connected to the trapezoidal plate 41, one side of the side panel 4 is snap-connected to an internal panel 44, the top of the internal panel 44 is fixedly connected to a support rod 45, and one side of the side panel 4 is snap-connected to a square rod 61, the square rod 61 and the built-in plate 44 are penetrated by reinforcing rod one 6 and reinforcing rod two 63, the two ends of reinforcing rod one 6 and reinforcing rod two 63 are respectively plugged with mounting frame one 1 and mounting frame two 3, one side of the square rod 61 is fixedly connected with auxiliary part two 66, the top of auxiliary part two 66 is plugged with vertical rod 47, one side of auxiliary part two 66 is clamped with oblique rod two 62, one side of oblique rod two 62 is clamped with clamping block 65, one side of clamping block 65 is fixedly connected with auxiliary part one 64, and auxiliary part one 64 is penetrated by reinforcing rod two 63.

[0025] In this embodiment, the support plates 43 can be used to support and reinforce the limiting plates 42 on both sides, thereby improving the stability of the connection between the support plates 43 and the side plates 4. The limiting plates 42 can be used to guide the installation of the trapezoidal plate 41, thereby facilitating the downward movement of the trapezoidal plate 41 along the limiting plates 42, and the side plates 4 at the bottom thereof are engaged to achieve the installation of the trapezoidal plate 41. The auxiliary member 2 66 can be used to limit the installation of the vertical rod 47, thereby achieving the connection between the auxiliary member 2 66 and the trapezoidal plate 41, supporting the bottom of the trapezoidal plate 41, and improving the stability of the trapezoidal plate 41 when in use. The built-in plate 44 can assist in the connection of the side plates 4 on both sides, and at the same time can support the reinforcing rod 1 6 and the reinforcing rod 2 63, so that the reinforcing rod 1 6 and the reinforcing rod 2 63 can keep the water The oblique rod 62 is flat, thereby improving the rigidity of the entire frame when in use. The snap-fit ​​block 65 can be used to achieve the connection between the oblique rod 2 62 and the auxiliary component 1 64. The other end of the oblique rod 2 62 can be connected through the auxiliary component 2 66. The oblique rod 2 62 is installed on both sides of the reinforcement rod 1 6 to form a triangular structure with the reinforcement rod 1 6, which can reduce the deformation of the frame when in use. At the same time, the oblique rod 2 62 is respectively snap-fitted and connected with the auxiliary component 2 66 and the snap-fit ​​block 65, which is also convenient for disassembly and replacement of the oblique rod 2 62. The auxiliary component 1 64 can be used to assist the connection between the snap-fit ​​block 65 and the reinforcement rod 2 63, so that after the oblique rod 2 62 is installed, one side of the reinforcement rod 2 63 can be reinforced, which can improve the longitudinal rigidity of the frame and make the frame have high rigidity and impact resistance.

[0026] Embodiment 3: According to Figure 1 - Figure 5 As shown, a buffer assembly 5 is arranged above the reinforcement rod 63, and the buffer assembly 5 includes a top plate 51, a hinge 53 and a guide plate 55. The bottom of the top plate 51 is fixedly connected to the guide plate 55, and one side of the guide plate 55 is slidably connected to the limit plate 42. One end of the buffer rod 54 is fixedly connected to the bottom of the top plate 51, and the bottom of the buffer rod 54 is connected to the support plate 43 by bolts. An auxiliary rod 52 is hinged to the bottom of the top plate 51, and the bottom of the auxiliary rod 52 is hinged to the hinge 53. The bottom of the hinge 53 is slidably connected to the support plate 43. A mounting hole is opened at the top of the top plate 51, and a card slot is opened at the bottom of the top plate 51, which is snap-connected with the top of the support rod 45.

[0027] In this embodiment, the top plate 51 can be used to assist in the connection between the truck body and the frame. The guide plate 55 is slidably connected to the limit plate 42 to guide the lifting and lowering of the top plate 51. A spring is installed between the inner rod and the outer rod of the buffer rod 54, so that the contraction of the spring can assist in the length adjustment of the buffer rod 54, thereby driving the top plate 51 to move up and reset. The auxiliary rod 52 can support between the support plate 43 and the top plate 51 to improve the stability of the top plate 51 during lifting and lowering. The support plate 43 can guide the sliding of the hinge 53, thereby improving the buffering effect on the bottom of the top plate 51. The support rod 45 and the built-in plate 44 can be used to support the bottom of the top plate 51 to prevent the middle part of the bottom of the top plate 51 from being suspended. At the same time, the support rod 45 can also be used to guide the installation of the top plate 51 to reduce the offset of the top plate 51 on the support plate 43, so that the guide plate 55 can be subsequently slid and lifted along the limit plate 42.

[0028] The method of using and the working principle of the device are as follows: first, the bottom of the trapezoidal plate 41 is engaged with the two side plates 4, and then the two side plates 4 are installed between the mounting frame 1 and the mounting frame 2 3 through the mounting parts 46, and the joints are welded, and then the limiting member 22 is fixed by the limiting bolt 29, and the limiting member 22 is connected with the buffer member 23 by bolts to realize the installation of the buffer member 23 on one side of the side plate 4, and the top plate 51 is engaged with the top of the support rod 45, and the auxiliary rod 52 is rotated at the bottom of the top plate 51, and the auxiliary rod 52 is connected with the support plate 43 by the hinge 53 to realize the assembly of the entire frame. When the frames need to be spliced ​​for use, the two frames can be placed horizontally, and the splicing plate 1 11 and the splicing plate 2 31 are connected by bolts to realize the splicing of the frames. The mounting hole at the top of the top plate 51 can be used to assist the connection between the vehicle body and the frame, and the mounting plate 21 can be used to assist the connection of the structures on both sides of the vehicle; During the use of the entire frame, when the mounting plate 21 is impacted by external force, the connecting member 26 can support one side of the mounting plate 21, and the buffer rod 1 25 is deformed to buffer one side of the mounting plate 21, thereby reducing the deformation of the mounting plate 21 after being subjected to force. When the mounting plate 21 and the buffer rod 1 25 are severely deformed, the limiting bolt 29 can be rotated to separate the limiting member 22 from the mounting frame 1 and the mounting frame 2 3 respectively, and then the buffer member 23 is separated from the limiting member 22, and the mounting plate 21 and the buffer member 23 are disassembled and replaced; When the top plate 51 is subjected to a downward force, the guide plate 55 moves downward along the limit plate 42, the buffer rod 54 is compressed, the inclination angle of the auxiliary rod 52 changes, and the bottom of the hinge 53 slides along the support plate 43 to provide buffering protection for the bottom of the top plate 51. The entire frame reduces the use of bracket structural parts, has a lightweight effect, and can reduce the overall mass of the frame, thereby improving the fuel economy of the truck frame when in use, reducing emissions, and improving handling and safety.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-rigidity, impact-resistant, lightweight truck frame structure, comprising a mounting frame 1 (1) and a mounting frame 2 (3), characterized in that: One side of the mounting frame 1 (1) and the mounting frame 2 (3) is respectively fixedly connected to a splicing plate 1 (11) and a splicing plate 2 (31), the splicing plate 1 (11) and the splicing plate 2 (31) are connected via bolts, one side of the mounting frame 1 (1) and the mounting frame 2 (3) is connected to a mounting member (46) via bolts, one side of the mounting member (46) is fixedly connected to a side plate (4), and one side of the side plate (4) is provided with an auxiliary mechanism (2); The auxiliary mechanism (2) comprises a mounting plate (21), a buffer member (23) and a fixing rod (27); one side of the mounting plate (21) is fixedly connected to the fixing rod (27) and the L-shaped rod (24) respectively; the other ends of the L-shaped rod (24) and the fixing rod (27) are fixedly connected to a connecting member (26); a buffer rod 1 (25) is inserted through the connecting member (26); one side of the buffer rod 1 (25) is fixedly connected to the buffer member (23); one side of the buffer member (23) is fixedly connected to a cross bar (28); one end of the cross bar (28) is fixedly connected to the buffer rod 1 (25); one side of the buffer member (23) is bolted to a limiting member (22); one end of the limiting member (22) passes through the mounting frame 1 (1) and the mounting frame 2 (3); and a limiting bolt (29) is threadedly connected between the limiting member (22) and the mounting frame 1 (1) and the mounting frame 2 (3).

2. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 1, characterized in that: The top of the side plate (4) is fixedly connected to a support plate (43), both sides of the support plate (43) are fixedly connected to limit plates (42), one side of the limit plate (42) is slidably connected to a trapezoidal plate (41), and the bottom of the trapezoidal plate (41) is snap-connected to the side plate (4).

3. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 2, characterized in that: The bottom of the trapezoidal plate (41) is fixedly connected to a vertical rod (47), one side of the vertical rod (47) is fixedly connected to an inclined rod 1 (48), and the top of the inclined rod 1 (48) is fixedly connected to the trapezoidal plate (41).

4. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 3, characterized in that: A built-in plate (44) is engaged with one side of the side plate (4), a support rod (45) is fixedly connected to the top of the built-in plate (44), a square rod (61) is engaged with one side of the side plate (4), a reinforcing rod 1 (6) and a reinforcing rod 2 (63) are inserted through the inside of the square rod (61) and the built-in plate (44), and two ends of the reinforcing rod 1 (6) and the reinforcing rod 2 (63) are respectively plugged into the mounting frame 1 (1) and the mounting frame 2 (3).

5. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 4, characterized in that: One side of the square rod (61) is fixedly connected to an auxiliary component 2 (66), the top of the auxiliary component 2 (66) is plugged into the vertical rod (47), one side of the auxiliary component 2 (66) is engaged with an inclined rod 2 (62), and one side of the inclined rod 2 (62) is engaged with a locking block (65).

6. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 5, characterized in that: One side of the locking block (65) is fixedly connected to an auxiliary component 1 (64), and the auxiliary component 1 (64) is penetrated by a reinforcement rod 2 (63).

7. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 6, characterized in that: A buffer assembly (5) is arranged above the second reinforcement rod (63), and the buffer assembly (5) comprises a top plate (51), a hinge (53) and a guide plate (55), the bottom of the top plate (51) is fixedly connected to the guide plate (55), and one side of the guide plate (55) is slidably connected to the limit plate (42).

8. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 7, characterized in that: One end of a second buffer rod (54) is fixedly connected to the bottom of the top plate (51), and the bottom of the second buffer rod (54) is connected to the support plate (43) via bolts.

9. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 8, characterized in that: An auxiliary rod (52) is hingedly connected to the bottom of the top plate (51), the bottom of the auxiliary rod (52) is hingedly connected to a hinged member (53), and the bottom of the hinged member (53) is slidably connected to the support plate (43).

10. The high-rigidity, impact-resistant truck frame lightweight structure according to claim 9, characterized in that: The top of the top plate (51) is provided with a mounting hole, and the bottom of the top plate (51) is provided with a slot, which is engaged and connected with the top of the support rod (45).

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