C-column tubular beam structure and mounting mode

Abstract

The invention discloses a C-column tubular beam structure and an installation mode, the C-column tubular beam structure is used for being installed on an automobile frame C-column, the C-column tubular beam structure comprises an inner plate assembly, a reinforcing plate assembly and a tubular beam assembly, one end of the inner plate assembly is provided with an installation part, and the installation part is connected to the automobile frame C-column; the reinforcing plate assembly covers the mounting part, and a containing cavity is formed between the reinforcing plate assembly and the mounting part; the tubular beam assembly is arranged in the containing cavity, and the tubular beam assembly is connected with the reinforcing plate assembly and the mounting part. The pipe beam assembly is additionally arranged between the inner plate assembly and the reinforcing plate assembly, the pipe beam assembly is connected with the reinforcing plate assembly and the inner plate assembly, and therefore the strength and rigidity of the C column are improved, the pressure resistance of the top of the automobile is improved, deformation of an automobile body structure caused when the automobile rolls over is reduced, and the safety of passengers is protected.

Description

Technical Field

[0001] The present invention relates to the field of automobile parts, and in particular to a C-pillar tube beam structure and an installation method. Background Art

[0002] With the development of society and the improvement of people's living standards, cars have become a necessity of life. However, cars may roll over when driving in some special environments or when a traffic accident occurs.

[0003] In the prior art, the strength and rigidity of the C-pillar of the automobile body structure are low, resulting in poor pressure resistance of the automobile top, which can easily cause the automobile body structure to deform when the car rolls over, thereby posing a threat to the personal safety of passengers. Summary of the invention

[0004] The purpose of the present invention is to provide a C-pillar tube beam structure and an installation method, aiming to solve the problem of low strength and rigidity of the existing automobile C-pillar.

[0005] To solve the above technical problems, an embodiment of the present invention provides a C-pillar tube beam structure for installation on the C-pillar of an automobile frame, comprising: an inner plate assembly, a reinforcing plate assembly and a tube beam assembly, wherein one end of the inner plate assembly is provided with a mounting portion, and the mounting portion is connected to the C-pillar of the automobile frame; the reinforcing plate assembly covers the mounting portion, and an accommodating cavity is provided between the reinforcing plate assembly and the mounting portion; the tube beam assembly is arranged in the accommodating cavity, and the tube beam assembly is respectively connected to the reinforcing plate assembly and the mounting portion.

[0006] Furthermore, the tubular beam assembly includes a tubular beam body and a connecting assembly connected to the tubular beam body, and the connecting assembly connects the reinforcing plate assembly and the mounting portion respectively.

[0007] Furthermore, the interior of the tube beam body is hollow, and the connecting assembly is sleeved on the tube beam body.

[0008] Furthermore, the tube beam body includes an upper tube beam and a lower tube beam, the upper tube beam is laterally abutted against one end of the mounting portion, one end of the lower tube beam is connected to the upper tube beam, and the other end extends longitudinally to the other end of the mounting portion.

[0009] Furthermore, the connecting assembly includes a first connecting member arranged between the upper tube beam and the lower tube beam, a second connecting member arranged on the lower tube beam, and a third connecting member arranged on the lower tube beam and away from one end of the upper tube beam, the first connecting member is connected to the mounting portion, and the second connecting member and the third connecting member are respectively connected to the reinforcing plate assembly.

[0010] Furthermore, the mounting portion is provided with a first connecting portion connected to the first connecting member.

[0011] Furthermore, the reinforcing plate assembly includes an upper reinforcing plate and a lower reinforcing plate connected in sequence; the upper reinforcing plate is provided with a second connecting portion connected to the second connecting member, and the lower reinforcing plate is provided with a third connecting portion connected to the third connecting member.

[0012] Furthermore, the upper tube beam and the upper reinforcement plate are connected by welding.

[0013] The present invention also provides a method for installing a C-pillar tube beam structure, which is used to install the C-pillar tube beam structure on a C-pillar of a vehicle frame, comprising:

[0014] Installing the inner plate assembly on the C-pillar of the automobile frame;

[0015] Connecting the pipe beam assembly to the inner plate assembly;

[0016] The reinforcing plate assembly is covered on the inner plate assembly, and the reinforcing plate assembly and the pipe beam assembly are connected.

[0017] Furthermore, the installation method of the C-pillar tube beam structure also includes:

[0018] Welding the upper tube beam to the upper reinforcement plate;

[0019] Connecting the first connecting member to the first connecting portion via a first bolt;

[0020] The second connecting member is connected to the second connecting portion via a second bolt, and the third connecting member is connected to the third connecting portion via a third bolt.

[0021] The embodiment of the present invention discloses a C-pillar tube beam structure and installation method, which is used to be installed on the C-pillar of an automobile frame, wherein the C-pillar tube beam structure includes: an inner plate assembly, a reinforcing plate assembly and a tube beam assembly, wherein one end of the inner plate assembly is provided with a mounting portion, and the mounting portion is connected to the C-pillar of the automobile frame; the reinforcing plate assembly covers the mounting portion, and an accommodating cavity is provided between the reinforcing plate assembly and the mounting portion; the tube beam assembly is provided in the accommodating cavity, and the tube beam assembly is respectively connected to the reinforcing plate assembly and the mounting portion. The present invention improves the strength and rigidity of the C-pillar by adding a tube beam assembly between the inner plate assembly and the reinforcing plate assembly, and the tube beam assembly is respectively connected to the reinforcing plate assembly and the inner plate assembly, thereby improving the pressure resistance of the top of the automobile, reducing the deformation of the body structure caused by the automobile rolling over, and protecting the safety of the passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0023] Figure 1 An exploded schematic diagram of a C-pillar tubular beam structure provided by an embodiment of the present invention;

[0024] Figure 2 A schematic structural diagram of a C-pillar tube beam structure provided by an embodiment of the present invention;

[0025] Figure 3 A schematic structural diagram of a reinforcement plate assembly provided in an embodiment of the present invention;

[0026] Figure 4 A cross-sectional view of an embodiment of the present invention;

[0027] Figure 5 A cross-sectional view B provided for an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of the inner plate assembly provided by an embodiment of the present invention;

[0029] Figure 7 A cross-sectional view C provided for an embodiment of the present invention;

[0030] Figure 8 A cross-sectional view D provided for an embodiment of the present invention;

[0031] Fig. 9 A schematic diagram of the structure of a pipe beam assembly provided in an embodiment of the present invention;

[0032] Fig.10 A cross-sectional view E provided for an embodiment of the present invention;

[0033] Fig.11 A cross-sectional view F provided for an embodiment of the present invention;

[0034] Fig.12 A cross-sectional view G provided for an embodiment of the present invention;

[0035] Fig.13 A schematic structural diagram of a C-pillar tubular beam structure provided by another embodiment of the present invention;

[0036] Fig.14 A cross-sectional view H provided for an embodiment of the present invention;

[0037] Fig.15 A cross-sectional view I is provided for an embodiment of the present invention;

[0038] Fig.16 A cross-sectional view J provided for an embodiment of the present invention;

[0039] Fig.17 A cross-sectional view K provided for an embodiment of the present invention;

[0040] Fig.18 A schematic diagram of a process for installing a C-pillar tubular beam structure provided by an embodiment of the present invention;

[0041] Fig.19 A schematic diagram of a sub-process for installing a C-pillar tubular beam structure according to an embodiment of the present invention;

[0042] Fig. 20 A schematic flow chart of a method for producing a tubular beam assembly provided in an embodiment of the present invention.

[0043] Description of the symbols in the figure:

[0044] 1. Inner plate assembly; 11. Mounting portion; 111. First connecting portion; 1111. First bolt; 12. Front portion of rear wheel housing outer plate; 13. Rear seat belt guide ring mounting plate; 14. Rear seat belt upper mounting plate; 15. Window connecting portion;

[0045] 2. reinforcement plate assembly; 21. upper reinforcement plate; 211. second connection portion; 2111. second bolt; 22. lower reinforcement plate; 221. third connection portion; 2211. third bolt; 23. door lock reinforcement plate; 24. nut box;

[0046] 3. Tube beam assembly; 31. Tube beam body; 311. Upper tube beam; 312. Lower tube beam; 32. Connection assembly; 321. First connection piece; 322. Second connection piece; 323. Third connection piece; 34. Welding part; 35. Reinforcement rib; 36. Rib plate;

[0047] 4. Accommodating cavity;

[0048] 5. Seat belt mounting hole. DETAILED DESCRIPTION

[0049] 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 described embodiments are 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.

[0050] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0051] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0052] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0053] Combination Figure 1-2 As shown, the present invention provides a C-pillar tube beam structure for installation on the C-pillar of an automobile frame, comprising: an inner plate assembly 1, a reinforcing plate assembly 2 and a tube beam assembly 3, wherein a mounting portion 11 is provided at one end of the inner plate assembly 1, and the mounting portion 11 is connected to the C-pillar of the automobile frame; the reinforcing plate assembly 2 covers the mounting portion 11, and an accommodating cavity 4 is provided between the reinforcing plate assembly 2 and the mounting portion 11; the tube beam assembly 3 is provided in the accommodating cavity 4, and the tube beam assembly 3 is respectively connected to the reinforcing plate assembly 2 and the mounting portion 11.

[0054] In the embodiment of the present invention, a tube beam assembly 3 is added to the accommodating cavity 4 formed between the inner panel assembly 1 and the reinforcing panel assembly 2, and the tube beam assembly 3 connects the reinforcing panel assembly 2 and the inner panel assembly 1 respectively. Compared with the body structure of the existing automobile, the strength and rigidity of the automobile C-pillar are improved, thereby improving the pressure resistance of the top of the automobile, thereby reducing the deformation of the body structure caused by the rollover of the automobile, and protecting the safety of the passengers.

[0055] In a specific embodiment, the inner panel assembly 1 further includes a vehicle window connecting portion 15 , which is connected to a side of the mounting portion 11 away from the C-pillar of the vehicle frame and is used for mounting the rear window of the vehicle.

[0056] In a specific embodiment, the material of the tube beam assembly 3 is high-strength steel, which can greatly improve the strength and rigidity of the automobile C-pillar, thereby improving the pressure resistance of the automobile top. More specifically, the tube beam assembly 3 can be connected to the reinforcement plate assembly 2 and the inner plate assembly 1 by welding, and the welding connection can make the vehicle body structure more stable, thereby further improving the strength and rigidity of the automobile C-pillar.

[0057] Combination Figure 9-12As shown, in some embodiments, the tube beam assembly 3 includes a tube beam body 31 and a connection assembly 32 connected to the tube beam body 31 , and the connection assembly 32 connects the reinforcement plate assembly 2 and the mounting portion 11 respectively.

[0058] In this embodiment, the reinforcing plate assembly 2 and the mounting portion 11 are respectively connected by the connecting assembly 32. Compared with connecting the reinforcing plate assembly 2 and the mounting portion 11 separately by welding, not only the welding process can be reduced, but also the integration of the vehicle body structure is increased. Moreover, the mounting portion 11 is connected to the C-pillar of the automobile, thereby improving the strength and rigidity of the C-pillar of the automobile, thereby improving the stability of the vehicle body structure.

[0059] In a specific embodiment, the interior of the tube beam body 31 is hollow, and the connecting assembly 32 is sleeved on the tube beam body 31 .

[0060] In this embodiment, the internal hollow structure helps to reduce the weight of the tube beam assembly 3, and can provide a certain deformation space for the car when rolling, thereby avoiding deformation of the car body structure. The connecting assembly 32 is sleeved on the tube beam body 31, and the sleeve connection method avoids the connecting assembly 32 affecting the pressure resistance of the internal hollow tube beam body 31.

[0061] In another specific embodiment, the tube beam body 31 includes an upper tube beam 311 and a lower tube beam 312 . The upper tube beam 311 is laterally abutted against one end of the mounting portion 11 . One end of the lower tube beam 312 is connected to the upper tube beam 311 , and the other end extends longitudinally to the other end of the mounting portion 11 .

[0062] In this embodiment, the tube beam body 31 is divided into a transverse upper tube beam 311 and a vertical lower tube beam 312. The upper tube beam 311 and the lower tube beam 312 correspond to the shapes of the mounting portion 11 and the reinforcing plate assembly 2, and reinforce the vehicle body structure in both the transverse and longitudinal directions, thereby increasing the stability of the vehicle body structure. In a more specific embodiment, the upper tube beam 311 is hollow inside, and gradually narrows from the side close to the mounting portion 11 to the side away from the mounting portion 11, which helps the reinforcing plate assembly 2 cover the mounting portion 11 to accommodate the upper tube beam 311. The lower tube beam 312 is hollow inside and rectangular, which is convenient for casting.

[0063] In a specific embodiment, the connecting component 32 includes a first connecting member 321 arranged between the upper tube beam 311 and the lower tube beam 312, a second connecting member 322 arranged on the lower tube beam 312, and a third connecting member 323 arranged on the lower tube beam 312 and away from one end of the upper tube beam 311. The first connecting member 321 is connected to the inner plate component 1, and the second connecting member 322 and the third connecting member 323 are respectively connected to the reinforcing plate component 2.

[0064] In this embodiment, the first connecting member 321, the second connecting member 322 and the third connecting member 323 are respectively arranged at the upper end, the middle end and the lower end of the tube beam body 31, and are respectively connected to the inner plate assembly 1 and the reinforcing plate assembly 2. The uniform arrangement increases the integration of the vehicle body structure, thereby improving the strength and rigidity of the C-pillar of the vehicle.

[0065] In a more specific embodiment, the upper tube beam 311 and the lower tube beam 312 form a "T"-shaped structure, and the inclination degree of the lower tube beam 312 corresponds to the inclination degree of the accommodating cavity 4 formed between the reinforcing plate assembly 2 and the inner plate assembly 1. The first connecting member 321, the second connecting member 322 and the third connecting member 323 are evenly arranged at the upper end, the middle end and the lower end of the lower tube beam 312, so that the connection between the tube beam assembly 3 and the reinforcing plate assembly 2 and the inner plate assembly 1 is relatively stable.

[0066] Combination Figure 6-8 As shown, in some embodiments, the inner plate assembly 1 includes a mounting portion 11 , and a first connecting portion 111 connected to the first connecting member 321 is provided on the mounting portion 11 .

[0067] In this embodiment, the first connecting portion 111 is connected to the first connecting member 321, which improves the stability of the connection between the tube beam assembly 3 and the mounting portion 11, thereby improving the strength and rigidity of the C-pillar of the automobile. Specifically, the first connecting member 321 is respectively mounted on the horizontal upper tube beam 311 and the vertical lower tube beam 312, and ribs 36 are provided at both ends of the upper tube beam 311 and the end of the lower tube beam 312 away from the upper tube beam 311 to strengthen the stability of the connection between the upper tube beam 311 and the upper tube beam 312. More specifically, the inner plate assembly 1 also includes a rear wheel housing outer plate front portion 12, a rear seat belt guide ring mounting plate 13 and a rear seat belt upper mounting plate 14, and the rear wheel housing outer plate front portion 12, the rear seat belt guide ring mounting plate 13 and the rear seat belt upper mounting plate 14 are respectively connected to the mounting portion 11 by spot welding.

[0068] Combination Fig.13 , Fig.17 As shown, in some embodiments, the first connecting portion 111 includes a first bolt 1111 and a first through hole (not shown), a first threaded hole (not shown) is provided on the first connecting member 321, and the first bolt 1111 passes through the first through hole and connects to the first threaded hole.

[0069] In this embodiment, the first connecting member 321 and the first connecting portion 111 are connected by threads, and the threaded connection is relatively tight, which improves the stability of the connection between the tube beam assembly 3 and the inner plate assembly 1, thereby improving the strength and rigidity of the C-pillar of the automobile.

[0070] Combination Figure 3-5 as well as Figure 13-15As shown, in some embodiments, the reinforcing plate assembly 2 includes an upper reinforcing plate 21 and a lower reinforcing plate 22 connected in sequence; the upper reinforcing plate 21 is provided with a second connecting portion 211 connected to the second connecting member 322, and the lower reinforcing plate 22 is provided with a third connecting portion 221 connected to the third connecting member 323.

[0071] In this embodiment, the second connecting portion 211 is connected to the second connecting member 322, and the third connecting portion 221 is connected to the third connecting member 323, which improves the stability of the connection between the tube beam assembly 3 and the reinforcing plate assembly 2, thereby improving the strength and rigidity of the C-pillar of the automobile. Figure 4 Specifically, the reinforcing plate assembly 2 further includes a door lock reinforcing plate 23 and a nut box 24, which are connected to the upper reinforcing plate 21 by welding, the door lock reinforcing plate 23 reinforces the door lock of the car, and a movable nut plate (not shown) is arranged in the nut box 24 to facilitate the adjustment of the gap surface difference between the rear door of the car and the car body.

[0072] In some embodiments, the second connecting portion 211 includes a second bolt 2111 and a second through hole (not shown), a second threaded hole (not shown) is provided on the second connecting member 322, and the second bolt 2111 passes through the second through hole and connects the second threaded hole; the third connecting portion 221 includes a third bolt 2211 and a third through hole (not shown), a third threaded hole (not shown) is provided on the third connecting member 323, and the third bolt 2211 passes through the third through hole and connects the third threaded hole.

[0073] In this embodiment, the second connecting member 322 and the second connecting part 211 are connected by threads, and the third connecting member 323 and the third connecting part 221 are connected by threads. The threaded connection is relatively tight, which improves the stability of the connection between the tube beam assembly 3 and the reinforcement plate assembly 2, thereby improving the strength and rigidity of the automobile C-pillar.

[0074] Combination Fig.10 and Fig.11 As shown, in a specific embodiment, reinforcing ribs 35 are provided on the first connecting member 321 and the second connecting member 322 to strengthen the connection strength between the tube beam assembly 3 and the mounting portion 11 and the reinforcing plate assembly 2, thereby improving the stability among the three.

[0075] Combination Fig.13 , Fig.16 As shown, in some embodiments, the upper tube beam 311 and the upper reinforcement plate 21 are connected by welding.

[0076] In this embodiment, the welding connection makes the connection between the upper tube beam 311 and the upper reinforcing plate 21 tight and stable, thereby improving the stability of the connection between the tube beam assembly 3 and the reinforcing plate assembly 2, and further improving the strength and rigidity of the automobile C-pillar. Specifically, the shape of the side of the upper tube beam 311 close to the upper reinforcing plate 21 corresponds to the upper reinforcing plate 21, and at least one welding portion 34 is provided on the upper tube beam 311, and the welding portion 34 and the upper reinforcing plate 21 are attached and connected by welding, and multiple welding portions 34 further improve the stability between the upper tube beam 311 and the upper reinforcing plate 21.

[0077] Combination Figure 5 and Figure 8 As shown, the C-pillar tubular beam structure also includes a seat belt mounting hole 5 for installing a seat belt. The seat belt mounting hole 5 passes through the upper reinforcing plate 21 and the mounting portion 11, so that the installation of the seat belt is not affected by the tubular beam assembly 3 and does not affect the safety of the passengers.

[0078] Combination Fig.18 As shown, the present invention also provides a method for installing a C-pillar tube beam structure, which is used to install the C-pillar tube beam structure on a C-pillar of a vehicle frame, and the steps include S10 to S30:

[0079] S10, installing the inner plate assembly 1 on the C-pillar of the automobile frame;

[0080] S20, connecting the pipe beam assembly 3 to the inner plate assembly 1;

[0081] S30, covering the reinforcing plate assembly 2 on the inner plate assembly 1, and connecting the reinforcing plate assembly 2 and the pipe beam assembly 3.

[0082] Combination Fig.19 As shown, this step also includes S301 to S203:

[0083] S301, welding the upper tube beam 311 to the upper reinforcing plate 21;

[0084] S302, connecting the first connecting member 321 to the first connecting portion 111 through the first bolt 1111;

[0085] S303 , connecting the second connecting member 322 to the second connecting portion 211 through the second bolt 2111 , and connecting the third connecting member 323 to the third connecting portion 221 through the third bolt 2211 .

[0086] In this embodiment, the welding connection makes the connection between the upper tube beam 311 and the upper reinforcement plate 21 tight and stable, and the tube beam assembly 3 and the inner plate assembly 1, and the tube beam assembly 3 and the reinforcement plate assembly 2 are respectively connected by threaded connection, which improves the stability of the connection between the tube beam assembly 3 and the inner plate assembly 1, and between the tube beam assembly 3 and the reinforcement plate assembly 2, thereby improving the strength and rigidity of the automobile C-pillar.

[0087] In the embodiment of the present invention, the tube beam assembly 3 is connected to the inner panel assembly 1, and the reinforcement plate assembly 2 is covered on the inner panel assembly 1, that is, the tube beam assembly 3 is arranged between the inner panel assembly 1 and the reinforcement plate assembly 2, and the tube beam assembly 3 is respectively connected to the reinforcement plate assembly 2 and the inner panel assembly 1. Compared with the body structure of the existing automobile, the strength and rigidity of the automobile C-pillar are improved, thereby improving the pressure resistance of the top of the automobile, thereby reducing the deformation of the body structure caused by the rollover of the automobile, and protecting the safety of the passengers.

[0088] Combination Fig. 20 As shown, the present invention also provides a production method of a tube beam assembly 3, wherein the first connecting member 321, the second connecting member 322 and the third connecting member 323 are made of cast aluminum, the first connecting member 321 and the upper tube beam 311 and the lower tube beam 312 are connected as a whole by a casting process, and the second connecting member 322 and the third connecting member 323 and the lower tube beam 312 are connected as a whole by a casting process, thereby improving the overall stability of the tube beam assembly 3. Specifically, the production method of the tube beam assembly 3 includes steps S40 to S60:

[0089] S40, placing the formed pipe beam body 31 into a mold cavity provided with a mold for forming the first connecting member 321, the second connecting member 322 and the third connecting member 323;

[0090] S50, heating the aluminum alloy to a semi-solid temperature range, and injecting the semi-solid aluminum alloy into the mold cavity at a preset pressure and a preset speed;

[0091] In this step, the preset pressure and the preset speed are based on the production requirements of the pipe beam assembly 3 in actual production.

[0092] S60, increasing the holding pressure of the mold cavity and cooling the mold.

[0093] In this step, the mold cavity is pressurized and cooled to form the aluminum alloy and the tube beam body 31 together, thereby forming a first connecting member 321, a second connecting member 322 and a third connecting member 323, and then forming the tube beam assembly 3.

[0094] In this embodiment, the tube beam assembly 3 is connected into a whole by a casting process, which improves the stability of the tube beam assembly 3, thereby improving the strength and rigidity of the C-pillar of the automobile, and further improving the pressure resistance of the top of the automobile, reducing the deformation of the body structure caused by the car rolling over, and protecting the safety of the passengers.

[0095] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A C-pillar tube beam structure, used for installation on a C-pillar of a vehicle frame, characterized in that: include: An inner plate assembly, wherein one end of the inner plate assembly is provided with a mounting portion, and the mounting portion is connected to the C-pillar of the automobile frame; A reinforcing plate assembly, wherein the reinforcing plate assembly covers the mounting portion, and an accommodating cavity is provided between the reinforcing plate assembly and the mounting portion; A tube beam assembly is disposed in the accommodating cavity, and the tube beam assembly is respectively connected to the reinforcing plate assembly and the mounting portion.

2. The C-pillar tube beam structure according to claim 1, characterized in that: The tube beam assembly includes a tube beam body and a connection assembly connected to the tube beam body, and the connection assembly connects the reinforcement plate assembly and the mounting portion respectively.

3. The C-pillar tubular beam structure according to claim 2, characterized in that: The interior of the tube beam body is hollow, and the connecting assembly is sleeved on the tube beam body.

4. The C-pillar tube beam structure according to claim 2, characterized in that: The tube beam body comprises an upper tube beam and a lower tube beam, wherein the upper tube beam is laterally abutted against one end of the mounting portion, and one end of the lower tube beam is connected to the upper tube beam, and the other end thereof longitudinally extends to the other end of the mounting portion.

5. The C-pillar tubular beam structure according to claim 4, characterized in that: The connecting assembly includes a first connecting member arranged between the upper tube beam and the lower tube beam, a second connecting member arranged on the lower tube beam, and a third connecting member arranged on the lower tube beam and away from one end of the upper tube beam, the first connecting member is connected to the mounting portion, and the second connecting member and the third connecting member are respectively connected to the reinforcing plate assembly.

6. The C-pillar tubular beam structure according to claim 5, characterized in that: The mounting portion is provided with a first connecting portion connected to the first connecting member.

7. The C-pillar tubular beam structure according to claim 5, characterized in that: The reinforcing plate assembly comprises an upper reinforcing plate and a lower reinforcing plate connected in sequence; The upper reinforcing plate is provided with a second connecting portion connected to the second connecting member, and the lower reinforcing plate is provided with a third connecting portion connected to the third connecting member.

8. The C-pillar tubular beam structure according to claim 7, characterized in that: The upper tube beam and the upper reinforcement plate are connected by welding.

9. A method for installing a C-pillar tube beam structure, used for installing the C-pillar tube beam structure on a C-pillar of a vehicle frame, characterized in that: include: Installing the inner plate assembly on the C-pillar of the automobile frame; Connecting the pipe beam assembly to the inner plate assembly; The reinforcing plate assembly is covered on the inner plate assembly, and the reinforcing plate assembly and the pipe beam assembly are connected.

10. The installation method of the C-pillar tubular beam structure according to claim 9, characterized in that: Also includes: Welding the upper tube beam to the upper reinforcement plate; Connecting the first connecting member to the first connecting portion; The second connecting member is connected to the second connecting portion, and the third connecting member is connected to the third connecting portion.

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