A side-opening back door hinge mounting pillar, D-pillar structure and back door frame

Abstract

This invention belongs to the field of vehicle engineering technology, specifically relating to a side-opening tailgate hinge mounting pillar, a D-pillar structure, and a tailgate frame. The side-opening tailgate hinge mounting pillar includes a first combined lamp holder plate assembly and a first pillar. The upper end of the first pillar is fixedly connected to one end of the rear crossbeam of the vehicle's roof, and the lower end of the first pillar is fixedly connected to one end of the rear crossbeam of the vehicle's rear floor. The first pillar has a tubular structure, and its outer side in the left-right direction is used for welding to the inner side of the vehicle's first side panel. The outer end of the first combined lamp holder plate assembly in the left-right direction is used for welding to the rear end of the first side panel, and the inner end of the first combined lamp holder plate assembly in the left-right direction is welded to the first pillar, forming a vertically extending first inner cavity between the first pillar and the first combined lamp holder plate assembly. The first combined lamp holder plate assembly has a tailgate upper hinge mounting hole and a tailgate lower hinge mounting hole.

Description

Technical Field

[0001] This invention belongs to the field of vehicle engineering technology, specifically relating to a side-opening tailgate hinge mounting pillar, D-pillar structure, and tailgate frame. Background Technology

[0002] In modern car design, side-opening tailgates are widely used in off-road vehicles due to their convenience and practicality. In existing technology, side-opening tailgates are usually mounted on side-opening tailgate hinge mounting pillars via hinges. The existing side-opening tailgate hinge mounting pillars are usually hollow columnar structures formed by welding the outer side panel, the inner support plate of the D-pillar, the water channel, and the combined lamp holder plate together. The tailgate hinge mounting holes are usually opened on the combined lamp holder plate.

[0003] However, existing side-opening tailgate hinge mounting supports typically use a connection method where the upper end of the D-pillar inner support plate is fixedly connected to one end of the vehicle's roof rear crossbeam, and the lower end of the D-pillar inner support plate is fixedly connected to one end of the vehicle's rear floor rear crossbeam. This means that existing side-opening tailgate hinge mounting supports mainly rely on the D-pillar inner support plate to provide support for the combination lamp holder plate and the side-opening tailgate hinged to it. Over time, the D-pillar inner support plate is prone to deformation, causing the combination lamp holder plate to shift and deform, which in turn leads to the side-opening tailgate sagging. This not only affects the vehicle's aesthetic appearance but may also have adverse effects on safety and sealing. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention provides a side-opening rear door hinge mounting support, a D-pillar structure, and a rear door frame. This solves the problem that existing side-opening rear door hinge mounting supports primarily rely on an inner support plate within the D-pillar to support the combined lamp holder plate and the side-opening rear door hinged to it. Over time, this inner support plate is prone to deformation, causing the combined lamp holder plate to shift and deform, ultimately leading to the side-opening rear door sagging.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A side-opening tailgate hinge mounting post includes: a first combined lamp holder plate assembly and a first column; the upper end of the first column is used to be fixedly connected to one end of the rear crossbeam of the vehicle's roof, and the lower end of the first column is used to be fixedly connected to one end of the rear crossbeam of the vehicle's rear floor.

[0007] The first column has a tubular structure, and the outer side of the first column in the left-right direction of the vehicle is used for welding connection with the inner side of the first side panel of the vehicle.

[0008] The first combined lamp holder plate assembly is disposed on the rear side of the first pillar. The outer end of the first combined lamp holder plate assembly in the left-right direction of the vehicle is used to weld to the rear end of the first side panel. The inner end of the first combined lamp holder plate assembly in the left-right direction of the vehicle is welded to the first pillar to form a vertically extending first inner cavity between the rear side of the first pillar and the front side of the first combined lamp holder plate assembly.

[0009] The rear side of the first combined lamp holder plate assembly is provided with a rear door upper hinge mounting hole and a rear door lower hinge mounting hole.

[0010] By forming a complete double-cavity tubular beam structure (including the inner cavity of the first pillar and the first inner cavity) by combining the first side panel outer plate, the first pillar, and the first combined lamp holder plate assembly, the side-opening tailgate hinge mounting column provided by this invention has higher overall structural strength than existing side-opening tailgate hinge mounting columns, ensuring that the upper and lower hinge mounting areas of the tailgate are not easily deformed during the use of the side-opening tailgate. Simultaneously, by fixing the upper end of the first pillar to one end of the rear crossbeam of the vehicle's roof and the lower end of the first pillar to one end of the rear crossbeam of the vehicle's rear floor, the side-opening tailgate hinge mounting column provided by this invention can... The first column provides support for the first combined lamp holder plate assembly and the side-opening tailgate hinged to the combined lamp holder plate assembly. Utilizing the tubular structure of the first column, it provides better bending and deformation resistance, ensuring that the first combined lamp holder plate assembly is less prone to downward movement or deformation, thereby preventing the side-opening tailgate from sinking. This solves the technical problem that existing side-opening tailgate hinge mounting supports mainly rely on the D-pillar inner support plate to provide support for the combined lamp holder plate and the side-opening tailgate hinged to it. Over time, the D-pillar inner support plate is prone to deformation, leading to downward movement and deformation of the combined lamp holder plate, and consequently, sinking of the side-opening tailgate.

[0011] Furthermore, the first combined lamp holder plate assembly includes a first water channel and a combined lamp holder plate assembly;

[0012] The lower end of the first water trough is welded to the upper end of the combined lamp holder plate assembly; the upper hinge mounting hole and the lower hinge mounting hole of the rear door are both opened on the rear side of the combined lamp holder plate assembly.

[0013] Furthermore, the combined lamp holder plate assembly includes a first combined lamp holder plate, an upper hinge mounting plate, and a lower hinge mounting plate;

[0014] The upper hinge mounting hole and the lower hinge mounting hole of the rear door are both opened on the rear side of the first combined lamp holder plate. The upper hinge mounting plate is set on the rear side of the first combined lamp holder plate corresponding to the upper hinge mounting hole of the rear door, and the lower hinge mounting plate is set on the rear side of the first combined lamp holder plate corresponding to the lower hinge mounting hole of the rear door.

[0015] The rear side of the upper hinge mounting plate and the rear side of the lower hinge mounting plate are both welded to the front side of the first combined lamp holder plate; the upper hinge mounting plate has a first bolt through hole corresponding to the upper hinge mounting hole of the rear door, and the lower hinge mounting plate has a second bolt through hole corresponding to the lower hinge mounting hole of the rear door.

[0016] Furthermore, the side-opening rear door hinge mounting column also includes a first reinforcing plate disposed in the first inner cavity;

[0017] The first reinforcing plate is disposed on the front side of the upper hinge mounting plate and the lower hinge mounting plate, and the front side of the upper hinge mounting plate and the front side of the lower hinge mounting plate are both welded to the rear side of the first reinforcing plate.

[0018] The first reinforcing plate is used to separate a first chamber located between the first reinforcing plate and the upper hinge mounting plate, and a second chamber located between the first reinforcing plate and the lower hinge mounting plate in the first inner cavity;

[0019] The first chamber is used to accommodate the end of the mounting bolt that passes through the upper hinge mounting hole and the first bolt through hole of the rear door in sequence, and the second chamber is used to accommodate the end of the mounting bolt that passes through the lower hinge mounting hole and the second bolt through hole of the rear door in sequence.

[0020] By setting the first reinforcing plate in the first inner cavity, the first combined lamp holder plate, the upper hinge mounting plate, the lower hinge mounting plate and the first reinforcing plate are welded together to form a complete hollow columnar structure, which can further enhance the structural strength of the upper and lower hinge mounting areas of the back door and further improve the problem of sagging of the side-opening back door.

[0021] Furthermore, the side-opening rear door hinge mounting column also includes a second reinforcing plate disposed within the first column;

[0022] The second reinforcing plate extends vertically, and both sides of the second reinforcing plate are welded to the inner side of the first column to divide the inner cavity of the first column into two sub-cavities that both extend vertically.

[0023] By setting the second reinforcing plate inside the first column, the first column forms a complete double-cavity tube beam structure (including two sub-cavities extending vertically). This allows the first side panel, the first column, and the first combined lamp holder assembly to form a complete three-cavity tube beam structure (including the first inner cavity and the two sub-cavities of the first column). This further improves the structural strength of the first column, thereby giving the side-opening rear door hinge mounting column provided by this invention higher overall structural strength and better ensuring that the upper and lower hinge mounting areas of the rear door are less prone to deformation during the use of the side-opening rear door.

[0024] Based on the side-opening rear door hinge mounting column provided by the present invention, the present invention also provides a D-pillar structure, including a latch mounting column, and the side-opening rear door hinge mounting column provided by the present invention.

[0025] The latch mounting support includes a second combined lamp holder plate assembly and a second column; the upper end of the second column is used to be fixedly connected to one end of the first column of the rear crossbeam of the vehicle's roof away from the side-opening tailgate hinge mounting support, and the lower end of the second column is used to be fixedly connected to one end of the rear crossbeam of the vehicle's rear floor away from the first column.

[0026] The second column has a tubular structure, and the outer side of the second column in the left-right direction of the vehicle is used for welding connection with the inner side of the second side panel of the vehicle.

[0027] The second combined lamp holder plate assembly is disposed on the rear side of the second pillar. The outer end of the second combined lamp holder plate assembly in the left-right direction of the vehicle is used for welding connection to the rear end of the second side panel. The inner end of the second combined lamp holder plate assembly in the left-right direction of the vehicle is welded to the second pillar to form a vertically extending second inner cavity between the rear side of the second pillar and the front side of the second combined lamp holder plate assembly.

[0028] The second column has a tailgate latch mounting hole on its inner side in the left-right direction of the vehicle.

[0029] By forming a complete double-cavity tubular beam structure (including the second inner cavity and the inner cavity of the second column) by making the second side panel outer plate, the second column, and the second combined lamp holder plate assembly together, and fixing the upper end of the second column to the end of the first column of the rear crossbeam of the vehicle's roof away from the side-opening tailgate hinge mounting post, and fixing the lower end of the second column to the end of the rear crossbeam of the vehicle's rear floor away from the first column, the overall structural strength of the tailgate frame (including the rear crossbeam of the roof, the latch mounting post, the rear crossbeam of the rear floor, and the side-opening tailgate hinge mounting post) can be effectively improved, the deformation of the tailgate frame can be effectively avoided, and the problem of the side-opening tailgate sagging can be further improved.

[0030] Furthermore, the second combined lamp holder plate assembly includes a second water channel and a second combined lamp holder plate;

[0031] The lower end of the second water trough is welded to the upper end of the second combined lamp holder plate.

[0032] Furthermore, the second column includes a first column segment and a second column segment arranged sequentially from top to bottom;

[0033] Both the first column segment and the second column segment are tubular structures. The second column segment is provided with a third inner cavity and a fourth inner cavity. Both the third inner cavity and the fourth inner cavity extend in a vertical direction. The fourth inner cavity is located on the rear side of the third inner cavity.

[0034] The inner cavity of the first column segment communicates with the third inner cavity to jointly form a third chamber; the tailgate latch mounting hole is opened on the inner side of the second column segment in the left-right direction of the vehicle;

[0035] The rear door latch mounting hole is connected to the fourth inner cavity, which is used to install the rear door latch.

[0036] By setting the second column as a single-cavity tubular first column segment and a double-cavity tubular second column segment, and using the fourth inner cavity within the second column segment to install the back door latch, the structural strength of the latch installation area on the latch installation column can be further improved.

[0037] Furthermore, the second column segment also has a tailgate limiting block mounting hole on its inner side in the left-right direction of the vehicle. The tailgate limiting block mounting hole is connected to the fourth inner cavity, which is also used to install the tailgate limiting block.

[0038] By setting the second column as a single-cavity tubular first column segment and a double-cavity tubular second column segment, and using the fourth inner cavity within the second column segment to install the back door limiting block, the structural strength of the back door limiting block installation area on the latch mounting column can be further improved.

[0039] Furthermore, the D-column structure also includes a third reinforcing plate disposed within the third chamber. The third reinforcing plate extends vertically, and both sides of the third reinforcing plate are welded to the inner side of the third chamber to divide the third chamber into two sub-chambers that both extend vertically.

[0040] By installing the third reinforcing plate in the third chamber, the structural strength of the second column can be further improved, thereby giving the latch mounting column higher overall structural strength. This can better prevent deformation of the rear door frame during the use of the side-opening rear door and further improve the problem of the side-opening rear door sinking.

[0041] Based on the D-pillar structure provided by the present invention, the present invention also provides a rear door frame, including a top cover rear crossbeam, a rear floor rear crossbeam, and the D-pillar structure provided by the present invention.

[0042] Both the rear crossbeam of the top cover and the rear crossbeam of the rear floor are tubular structures.

[0043] The rear crossbeam of the top cover is fixedly connected between the upper end of the latch mounting column of the D-pillar structure and the upper end of the side-opening rear door hinge mounting column of the D-pillar structure.

[0044] The rear floor beam is fixedly connected between the lower end of the locking mounting post of the D-pillar structure and the lower end of the side-opening rear door hinge mounting post of the D-pillar structure.

[0045] By setting both the rear crossbeam of the top cover and the rear crossbeam of the rear floor as tubular structures, the rear door frame provided by the present invention has an overall tubular beam frame structure, which can effectively improve the overall structural strength of the rear door frame, avoid deformation of the rear door frame, and further improve the problem of sagging of the side-opening rear door. Attached Figure Description

[0046] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a structural schematic diagram of the rear door frame in the embodiment;

[0048] Figure 2 This is an exploded structural diagram of the rear door frame in the embodiment;

[0049] Figure 3 This is a rear view structural schematic diagram of the first combined lamp holder plate assembly in the embodiment;

[0050] Figure 4 yes Figure 3 AA cross-section view;

[0051] Figure 5 yes Figure 3 BB cross-section;

[0052] Figure 6 yes Figure 3 CC cross-section;

[0053] Figure 7 This is a rear view structural diagram of the first column in the embodiment;

[0054] Figure 8 yes Figure 7 DD cross-section;

[0055] Figure 9 yes Figure 7 EE cross-section;

[0056] Figure 10 This is a rear view structural schematic diagram of the second combined lamp holder plate assembly in the embodiment;

[0057] Figure 11 yes Figure 10 FF cross-sectional view;

[0058] Figure 12 This is a rear view structural diagram of the second column in the embodiment;

[0059] Figure 13 yes Figure 12 GG cross-section;

[0060] Figure 14 yes Figure 12 HH cross-section diagram;

[0061] Figure 15 yes Figure 12 Section II;

[0062] Among them, 1—first combined lamp holder plate assembly, 2—first column, 3—second combined lamp holder plate assembly, 4—second column, 5—rear floor rear crossbeam, 6—top cover rear crossbeam, 7—first side outer panel, 8—first inner cavity, 9—first reinforcing plate, 10—second reinforcing plate, 11—first sub-inner cavity, 12—second sub-inner cavity, 13—fourth inner cavity, 14—third reinforcing plate, 15—first sub-chamber, 16—second sub-chamber, 17—first connecting plate, 18—second connecting plate;

[0063] 1.1—First water trough; 1.2—Combined lamp holder plate assembly;

[0064] 1.2.1—First combined lamp holder plate; 1.2.2—Upper hinge mounting plate; 1.2.3—Lower hinge mounting plate;

[0065] 3.1—Second water trough; 3.2—Second combined lamp holder plate;

[0066] 3.2.1—Mainboard; 3.2.2—Replacement board;

[0067] 4.1—First column segment; 4.2—Second column segment;

[0068] 8.1—First chamber, 8.2—Second chamber. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0070] Example 1:

[0071] like Figures 1 to 9 As shown, Embodiment 1 provides a side-opening tailgate hinge mounting support, including: a first combined lamp holder plate assembly 1 and a first column 2; the upper end of the first column 2 is used to be fixedly connected to one end of the rear crossbeam 6 of the vehicle's roof, and the lower end of the first column 2 is used to be fixedly connected to one end of the rear crossbeam 5 of the vehicle's rear floor.

[0072] The first pillar 2 has a tubular structure, and the outer side of the first pillar 2 in the left-right direction of the vehicle is used for welding connection with the inner side of the first side panel 7 of the vehicle.

[0073] The first combined lamp holder plate assembly 1 is disposed on the rear side of the first pillar 2. The outer end of the first combined lamp holder plate assembly 1 in the left-right direction of the vehicle is used to weld and connect with the rear end of the first side panel 7. The inner end of the first combined lamp holder plate assembly 1 in the left-right direction of the vehicle is welded and connected with the first pillar 2 to form a vertically extending first inner cavity 8 between the rear side of the first pillar 2 and the front side of the first combined lamp holder plate assembly 1.

[0074] The rear side of the first combined lamp holder assembly 1 is provided with a rear door upper hinge mounting hole and a rear door lower hinge mounting hole.

[0075] By forming a complete double-cavity tubular beam structure (including the inner cavity of the first pillar 2 and the first inner cavity 8) by combining the first side panel 7, the first pillar 2, and the first combined lamp holder assembly 1, the side-opening tailgate hinge mounting column provided by this invention has higher overall structural strength than existing side-opening tailgate hinge mounting columns, ensuring that the upper and lower hinge mounting areas of the tailgate are not easily deformed during the use of the side-opening tailgate. Simultaneously, by fixing the upper end of the first pillar 2 to one end of the rear crossbeam 6 of the vehicle's roof and the lower end of the first pillar 2 to one end of the rear crossbeam 5 of the vehicle's rear floor, the side-opening tailgate hinge mounting column provided by this invention can... The first column 2 provides support for the first combined lamp holder plate assembly 1 and the side-opening tail door hinged to the combined lamp holder plate assembly. The tubular structure of the first column 2 provides better bending and deformation resistance, ensuring that the first combined lamp holder plate assembly 1 is not prone to downward movement or deformation, thereby preventing the side-opening tail door from sinking. This solves the technical problem that existing side-opening tail door hinge installation pillars mainly use the D-pillar inner support plate to provide support for the combined lamp holder plate and the side-opening tail door hinged to the combined lamp holder plate. With the passage of time, the D-pillar inner support plate is prone to deformation, causing the combined lamp holder plate to move downward and deform, which in turn leads to the side-opening tail door sinking.

[0076] In this embodiment 1, as Figure 3 As shown, the first combined lamp holder plate assembly 1 includes a first water channel 1.1 and a combined lamp holder plate assembly 1.2;

[0077] The lower end of the first water trough 1.1 is welded to the upper end of the combined lamp holder plate assembly 1.2; the upper hinge mounting hole and the lower hinge mounting hole of the back door are both opened on the rear side of the combined lamp holder plate assembly 1.2.

[0078] In this embodiment 1, as Figures 3 to 5 As shown, the combined lamp holder plate assembly 1.2 includes a first combined lamp holder plate 1.2.1, an upper hinge mounting plate 1.2.2, and a lower hinge mounting plate 1.2.3;

[0079] The upper hinge mounting hole and the lower hinge mounting hole of the rear door are both opened on the rear side of the first combined lamp holder plate 1.2.1. The upper hinge mounting plate 1.2.2 is located on the rear side of the first combined lamp holder plate 1.2.1, corresponding to the upper hinge mounting hole of the rear door. The lower hinge mounting plate 1.2.3 is located on the rear side of the first combined lamp holder plate 1.2.1, corresponding to the lower hinge mounting hole of the rear door.

[0080] The rear side of the upper hinge mounting plate 1.2.2 and the rear side of the lower hinge mounting plate 1.2.3 are both welded to the front side of the first combined lamp holder plate 1.2.1; the upper hinge mounting plate 1.2.2 has a first bolt through hole corresponding to the upper hinge mounting hole of the back door, and the lower hinge mounting plate 1.2.3 has a second bolt through hole corresponding to the lower hinge mounting hole of the back door.

[0081] Preferably, in this embodiment 1, as Figures 4 to 6 As shown, the side-opening rear door hinge mounting column also includes a first reinforcing plate 9 disposed in the first inner cavity 8;

[0082] The first reinforcing plate 9 is disposed on the front side of the upper hinge mounting plate 1.2.2 and the lower hinge mounting plate 1.2.3. The front side of the upper hinge mounting plate 1.2.2 and the front side of the lower hinge mounting plate 1.2.3 are both welded to the rear side of the first reinforcing plate 9.

[0083] The first reinforcing plate 9 is used to separate a first chamber 8.1 located between the first reinforcing plate 9 and the upper hinge mounting plate 1.2.2, and a second chamber 8.2 located between the first reinforcing plate 9 and the lower hinge mounting plate 1.2.3 in the first inner cavity 8;

[0084] The first chamber 8.1 is used to accommodate the end of the mounting bolt that passes through the upper hinge mounting hole and the first bolt through hole of the rear door in sequence, and the second chamber 8.2 is used to accommodate the end of the mounting bolt that passes through the lower hinge mounting hole and the second bolt through hole of the rear door in sequence.

[0085] By setting a first reinforcing plate 9 in the first inner cavity 8, the first combined lamp holder plate 1.2.1, the upper hinge mounting plate 1.2.2, the lower hinge mounting plate 1.2.3 and the first reinforcing plate 9 are welded together to form a complete hollow columnar structure, which can further strengthen the structural strength of the upper and lower hinge mounting areas of the back door and further improve the problem of the side-opening back door sinking.

[0086] Preferably, in this embodiment 1, as Figures 6 to 8 As shown, the side-opening rear door hinge mounting support also includes a second reinforcing plate 10 disposed within the first column 2;

[0087] The second reinforcing plate 10 extends vertically, and both sides of the second reinforcing plate 10 are welded to the inner side of the first column 2 to divide the inner cavity of the first column 2 into two sub-cavities that both extend vertically (i.e., Figure 6 and Figure 8 (The first sub-cavity 11 and the second sub-cavity 12 are marked in the text).

[0088] By setting a second reinforcing plate 10 inside the first column 2, the first column 2 forms a complete double-cavity tube beam structure (including two sub-cavities extending vertically). This allows the first side panel 7, the first column 2, and the first combined lamp holder assembly 1 to form a complete three-cavity tube beam structure (including the first inner cavity 8 and the two sub-cavities of the first column 2). This further improves the structural strength of the first column 2, thereby giving the side-opening rear door hinge mounting column provided by this invention higher overall structural strength and better ensuring that the upper and lower hinge mounting areas of the rear door are not easily deformed during the use of the side-opening rear door.

[0089] Specifically, in this embodiment 1, as follows: Figure 9 As shown, an "L"-shaped first connecting plate 17 is welded to the bottom end of the first column 2. The first connecting plate 17 has a third bolt through hole for bolting to one end of the rear floor beam 5.

[0090] In practical applications, such as Figures 6 to 8 As shown, the first column 2 is usually composed of multiple sheet metal parts welded together. Its specific manufacturing form is determined by the sheet metal process and welding process used. In this embodiment 1, the sheet metal process and welding process used in the manufacturing process of the first column 2 are existing technologies, so the sheet metal parts constituting the first column 2 will not be described in detail.

[0091] Example 2:

[0092] Based on the side-opening rear door hinge mounting column provided in Embodiment 1, Embodiment 2 provides a D-column structure, including a latch mounting column and the side-opening rear door hinge mounting column provided in Embodiment 1.

[0093] like Figure 2 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 and Figure 15 As shown, the latch mounting support includes a second combined lamp holder plate assembly 3 and a second column 4; the upper end of the second column 4 is used to fix and connect to one end of the first column 2 of the rear crossbeam 6 of the vehicle's roof away from the side-opening tailgate hinge mounting support, and the lower end of the second column 4 is used to fix and connect to one end of the rear crossbeam 5 of the vehicle's rear floor away from the first column 2.

[0094] The second pillar 4 has a tubular structure, and the outer side of the second pillar 4 in the left-right direction of the vehicle is used for welding connection with the inner side of the second side panel of the vehicle.

[0095] The second combined lamp socket plate assembly 3 is arranged at the rear side of the second upright column 4. The outer end of the second combined lamp socket plate assembly 3 in the left - right direction of the vehicle is used for welded connection with the rear end of the second outer side panel of the vehicle body. The inner end of the second combined lamp socket plate assembly 3 in the left - right direction of the vehicle is welded to the second upright column 4, so as to form a second inner cavity extending vertically between the rear side surface of the second upright column 4 and the front side surface of the second combined lamp socket plate assembly 3;

[0096] On the inner side surface of the second upright column 4 in the left - right direction of the vehicle, a back door lock catch mounting hole is provided.

[0097] By making the second outer side panel of the vehicle body, the second upright column 4 and the second combined lamp socket plate assembly 3 jointly form a complete double - cavity tube beam structure (including the second inner cavity and the inner cavity of the second upright column 4), and making the upper end of the second upright column 4 fixedly connected to one end of the first upright column 2 of the vehicle body roof rear cross - beam 6 far from the side - opening back door hinge mounting strut, and the lower end of the second upright column 4 is used for fixedly connecting to one end of the vehicle body rear floor rear cross - beam 5 far from the first upright column 2; it can effectively improve the overall structural strength of the back door frame (including the roof rear cross - beam 6, the lock catch mounting strut, the rear floor rear cross - beam 5 and the side - opening back door hinge mounting strut), effectively avoid the deformation of the back door frame, and further improve the problem of the side - opening back door sinking.

[0098] Specifically, in the second embodiment 2, as Figure 10 shown, the second combined lamp socket plate assembly 3 includes a second water channel 3.1 and a second combined lamp socket plate 3.2;

[0099] The lower end of the second water channel 3.1 is welded to the upper end of the second combined lamp socket plate 3.2.

[0100] Preferably, in the second embodiment 2, as Figure 10 and Figure 11 shown, the second combined lamp socket plate 3.2 is formed by welding a main plate 3.2.1 and a reinforcing plate 3.2.2 into a "C" - shaped structure, which can effectively improve the structural strength of the second combined lamp socket plate 3.2.

[0101] Specifically, in the second embodiment 2, as Figures 12 to 14 shown, the second upright column 4 includes a first column section 4.1 and a second column section 4.2 arranged in sequence from top to bottom;

[0102] Both the first column section 4.1 and the second column section 4.2 are in a tubular structure. A third inner cavity and a fourth inner cavity 13 are arranged in the second column section 4.2. Both the third inner cavity and the fourth inner cavity 13 extend in the vertical direction, and the fourth inner cavity 13 is arranged at the rear side of the third inner cavity;

[0103] The inner cavity of the first pillar section 4.1 is connected to the third inner cavity to form the third chamber; the tailgate latch mounting hole is opened on the inner side of the second pillar section 4.2 in the left-right direction of the vehicle;

[0104] The rear door latch mounting hole connects to the fourth inner cavity 13, which is used to install the rear door latch.

[0105] By setting the second column 4 as a single-cavity tubular first column segment and a double-cavity tubular second column segment 4.2, and using the fourth inner cavity 13 within the second column segment 4.2 to install the back door latch, the structural strength of the latch installation area on the latch installation column can be further improved.

[0106] Preferably, in this embodiment 2, as Figure 14 As shown, the second column segment 4.2 also has a tailgate limit block mounting hole on its inner side in the left-right direction of the vehicle. The tailgate limit block mounting hole is connected to the fourth inner cavity 13, which is also used to install the tailgate limit block.

[0107] By setting the second column 4 as a single-cavity tubular first column segment and a double-cavity tubular second column segment 4.2, and using the fourth inner cavity 13 within the second column segment 4.2 to install the back door limiting block, the structural strength of the back door limiting block installation area on the latch mounting column can be further improved.

[0108] Preferably, in this embodiment 2, as Figure 13 and Figure 14 As shown, the D-column structure also includes a third reinforcing plate 14 disposed within the third chamber. The third reinforcing plate 14 extends vertically, and both sides of the third reinforcing plate 14 are welded to the inner surface of the third chamber to divide the third chamber into two sub-chambers, both extending vertically (i.e., Figure 13 and Figure 14 The first sub-chamber 15 and the second sub-chamber 16 are marked in the text.

[0109] By setting a third reinforcing plate 14 in the third chamber, the structural strength of the second column 4 can be further improved, thereby giving the latch mounting column higher overall structural strength. This can better prevent the rear door frame from deforming during the use of the side-opening rear door, and further improve the problem of the side-opening rear door sinking.

[0110] Specifically, in this embodiment 2, as Figure 15 As shown, an "L"-shaped second connecting plate 18 is welded to the bottom end of the second column segment 4.2. The second connecting plate 18 has a fourth bolt through hole for bolting to one end of the rear floor beam 5.

[0111] In practical applications, such as Figures 12 to 14As shown, the second column 4 is usually composed of multiple sheet metal parts welded together. Its specific manufacturing form is determined by the sheet metal process and welding process used. In this embodiment 2, the sheet metal process and welding process used in the manufacturing process of the second column 4 are existing technologies, so the sheet metal parts constituting the second column 4 will not be described in detail.

[0112] Example 3:

[0113] like Figure 1 and Figure 2 As shown, based on the D-pillar structure provided in Embodiment 2, Embodiment 3 provides a rear door frame, including a top cover rear crossbeam 6, a rear floor rear crossbeam 5, and the D-pillar structure provided in Embodiment 2;

[0114] Both the rear crossbeam 6 of the roof and the rear crossbeam 5 of the rear floor are tubular structures.

[0115] The rear crossbeam 6 of the top cover is fixedly connected between the upper end of the latch mounting column of the D-pillar structure and the upper end of the side-opening rear door hinge mounting column of the D-pillar structure.

[0116] The rear floor beam 5 is fixedly connected between the lower end of the latch mounting column of the D-pillar structure and the lower end of the side-opening rear door hinge mounting column of the D-pillar structure.

[0117] By setting both the rear crossbeam 6 of the top cover and the rear crossbeam 5 of the rear floor as tubular structures, the rear door frame provided by the present invention has an overall tubular beam frame structure, which can effectively improve the overall structural strength of the rear door frame, avoid deformation of the rear door frame, and further improve the problem of sagging of the side-opening rear door.

[0118] In this article, "up", "down", "front", "back", "left", and "right" refer to the up, down, front, back, left, and right directions of the vehicle.

[0119] The side-opening rear door hinge mounting column, D-pillar structure, and rear door frame provided by this invention have at least the following technical effects or advantages:

[0120] 1. By forming a complete double-cavity tubular beam structure (including the inner cavity of the first column 2 and the first combined lamp holder plate assembly 1) by making the first side panel 7, the first column 2, and the first combined lamp holder plate assembly 1 together, the side-opening tailgate hinge mounting column provided by this invention has higher overall structural strength than existing side-opening tailgate hinge mounting columns, ensuring that the upper and lower hinge mounting areas of the tailgate are not easily deformed during the use of the side-opening tailgate; at the same time, by fixing the upper end of the first column 2 to one end of the rear crossbeam 6 of the vehicle's roof and fixing the lower end of the first column 2 to one end of the rear crossbeam 5 of the vehicle's rear floor, the side-opening tailgate hinge mounting column provided by this invention... The first column 2 provides support for the first combined lamp holder plate assembly 1 and the side-opening tail door hinged to the combined lamp holder plate assembly. The tubular structure of the first column 2 provides better bending and deformation resistance, ensuring that the first combined lamp holder plate assembly 1 is not prone to downward movement or deformation, thereby preventing the side-opening tail door from sinking. This solves the technical problem that existing side-opening tail door hinge mounting pillars mainly use the D-pillar inner support plate to support the combined lamp holder plate and the side-opening tail door hinged to the combined lamp holder plate. As the usage time increases, the D-pillar inner support plate is prone to deformation, causing the combined lamp holder plate to move downward or deform, which in turn leads to the side-opening tail door sinking.

[0121] 2. By setting a first reinforcing plate 9 in the first inner cavity 8, the first combined lamp holder plate 1.2.1, the upper hinge mounting plate 1.2.2, the lower hinge mounting plate 1.2.3 and the first reinforcing plate 9 are welded together to form a complete hollow columnar structure, which can further strengthen the structural strength of the upper and lower hinge mounting areas of the back door and further improve the problem of the side-opening back door sinking.

[0122] 3. By setting a second reinforcing plate 10 inside the first column 2, the first column 2 forms a complete double-cavity tube beam structure (including two sub-cavities extending vertically), thereby making the first side panel 7, the first column 2, and the first combined lamp holder plate assembly 1 together form a complete three-cavity tube beam structure (including the first inner cavity 8 and the two sub-cavities of the first column 2), which can further improve the structural strength of the first column 2, thereby making the side-opening back door hinge mounting column provided by the present invention have higher overall structural strength, and better ensuring that the upper and lower hinge mounting areas of the back door are not easily deformed during the use of the side-opening back door.

[0123] 4. By forming a complete double-cavity tube beam structure (including the inner cavity of the second inner cavity and the inner cavity of the second pillar 4) by making the second side panel outer plate, the second pillar 4, and the second combined lamp holder plate assembly 3 together, and fixing the upper end of the second pillar 4 to the end of the first pillar 2 of the rear crossbeam 6 of the vehicle's roof away from the side-opening tailgate hinge mounting column, and fixing the lower end of the second pillar 4 to the end of the rear crossbeam 5 of the vehicle's rear floor away from the first pillar 2, the overall structural strength of the tailgate frame (including the rear crossbeam 6 of the roof, the latch mounting column, the rear crossbeam 5 of the rear floor, and the side-opening tailgate hinge mounting column) can be effectively improved, and the deformation of the tailgate frame can be effectively avoided, further improving the problem of the side-opening tailgate sagging.

[0124] 5. By setting the second column 4 as a single-cavity tubular first column segment and a double-cavity tubular second column segment 4.2, and using the fourth inner cavity 13 within the second column segment 4.2 to install the back door latch, the structural strength of the latch installation area on the latch installation column can be further improved.

[0125] 6. By setting the second column 4 as a single-cavity tubular first column segment and a double-cavity tubular second column segment 4.2, and using the fourth inner cavity 13 in the second column segment 4.2 to install the back door limiting block, the structural strength of the back door limiting block installation area on the latch mounting column can be further improved.

[0126] 7. By setting a third reinforcing plate 14 in the third chamber, the structural strength of the second column 4 can be further improved, thereby giving the latch mounting column higher overall structural strength. This can better prevent the rear door frame from deforming during the use of the side-opening rear door, and further improve the problem of the side-opening rear door sinking.

[0127] 8. By setting both the rear crossbeam 6 of the top cover and the rear crossbeam 5 of the rear floor as tubular structures, the rear door frame provided by the present invention is an overall tubular beam frame structure, which can effectively improve the overall structural strength of the rear door frame, avoid deformation of the rear door frame, and further improve the problem of sinking of the side-opening rear door.

[0128] The above are merely specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. All technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of protection of the present invention.

Claims

1. A side-opening rear door hinge mounting post, characterized in that, include: The first combined lamp holder plate assembly and the first column; the upper end of the first column is used to be fixedly connected to one end of the rear crossbeam of the vehicle's roof, and the lower end of the first column is used to be fixedly connected to one end of the rear crossbeam of the vehicle's rear floor. The first column has a tubular structure, and the outer side of the first column in the left-right direction of the vehicle is used for welding connection with the inner side of the first side panel of the vehicle. The first combined lamp holder plate assembly is disposed on the rear side of the first pillar. The outer end of the first combined lamp holder plate assembly in the left-right direction of the vehicle is used to weld to the rear end of the first side panel. The inner end of the first combined lamp holder plate assembly in the left-right direction of the vehicle is welded to the first pillar to form a vertically extending first inner cavity between the rear side of the first pillar and the front side of the first combined lamp holder plate assembly. The rear side of the first combined lamp holder plate assembly is provided with a rear door upper hinge mounting hole and a rear door lower hinge mounting hole.

2. The side-opening rear door hinge mounting support according to claim 1, characterized in that: The first combined lamp holder plate assembly includes a first water channel and a combined lamp holder plate assembly; The lower end of the first water trough is welded to the upper end of the combined lamp holder plate assembly; the upper hinge mounting hole and the lower hinge mounting hole of the rear door are both opened on the rear side of the combined lamp holder plate assembly.

3. The side-opening rear door hinge mounting support according to claim 2, characterized in that: The combined lamp holder plate assembly includes a first combined lamp holder plate, an upper hinge mounting plate, and a lower hinge mounting plate; The upper hinge mounting hole and the lower hinge mounting hole of the rear door are both opened on the rear side of the first combined lamp holder plate. The upper hinge mounting plate is set on the rear side of the first combined lamp holder plate corresponding to the upper hinge mounting hole of the rear door, and the lower hinge mounting plate is set on the rear side of the first combined lamp holder plate corresponding to the lower hinge mounting hole of the rear door. The rear side of the upper hinge mounting plate and the rear side of the lower hinge mounting plate are both welded to the front side of the first combined lamp holder plate; the upper hinge mounting plate has a first bolt through hole corresponding to the upper hinge mounting hole of the rear door, and the lower hinge mounting plate has a second bolt through hole corresponding to the lower hinge mounting hole of the rear door.

4. The side-opening rear door hinge mounting support according to claim 3, characterized in that: It also includes a first reinforcing plate disposed in the first inner cavity; The first reinforcing plate is disposed on the front side of the upper hinge mounting plate and the lower hinge mounting plate, and the front side of the upper hinge mounting plate and the front side of the lower hinge mounting plate are both welded to the rear side of the first reinforcing plate. The first reinforcing plate is used to separate a first chamber located between the first reinforcing plate and the upper hinge mounting plate, and a second chamber located between the first reinforcing plate and the lower hinge mounting plate in the first inner cavity; The first chamber is used to accommodate the end of the mounting bolt that passes through the upper hinge mounting hole and the first bolt through hole of the rear door in sequence, and the second chamber is used to accommodate the end of the mounting bolt that passes through the lower hinge mounting hole and the second bolt through hole of the rear door in sequence.

5. The side-opening rear door hinge mounting support according to claim 1, characterized in that: It also includes a second reinforcing plate disposed inside the first column; The second reinforcing plate extends vertically, and both sides of the second reinforcing plate are welded to the inner side of the first column to divide the inner cavity of the first column into two sub-cavities that both extend vertically.

6. A D-column structure, characterized in that, Includes a latch mounting post, and a side-opening rear door hinge mounting post as described in any one of claims 1-5; The latch mounting support includes a second combined lamp holder plate assembly and a second column; the upper end of the second column is used to be fixedly connected to one end of the first column of the rear crossbeam of the vehicle's roof away from the side-opening tailgate hinge mounting support, and the lower end of the second column is used to be fixedly connected to one end of the rear crossbeam of the vehicle's rear floor away from the first column. The second column has a tubular structure, and the outer side of the second column in the left-right direction of the vehicle is used for welding connection with the inner side of the second side panel of the vehicle. The second combined lamp holder plate assembly is disposed on the rear side of the second pillar. The outer end of the second combined lamp holder plate assembly in the left-right direction of the vehicle is used for welding connection to the rear end of the second side panel. The inner end of the second combined lamp holder plate assembly in the left-right direction of the vehicle is welded to the second pillar to form a vertically extending second inner cavity between the rear side of the second pillar and the front side of the second combined lamp holder plate assembly. The second column has a tailgate latch mounting hole on its inner side in the left-right direction of the vehicle.

7. The D-column structure according to claim 6, characterized in that: The second combined lamp holder plate assembly includes a second water channel and a second combined lamp holder plate; The lower end of the second water trough is welded to the upper end of the second combined lamp holder plate.

8. The D-column structure according to claim 6, characterized in that: The second column includes a first column segment and a second column segment arranged sequentially from top to bottom; Both the first column segment and the second column segment are tubular structures. The second column segment is provided with a third inner cavity and a fourth inner cavity. Both the third inner cavity and the fourth inner cavity extend in a vertical direction. The fourth inner cavity is located on the rear side of the third inner cavity. The inner cavity of the first column segment communicates with the third inner cavity to jointly form a third chamber; the tailgate latch mounting hole is opened on the inner side of the second column segment in the left-right direction of the vehicle; The rear door latch mounting hole is connected to the fourth inner cavity, which is used to install the rear door latch.

9. The D-column structure according to claim 8, characterized in that: It also includes a third reinforcing plate disposed in the third chamber, the third reinforcing plate extending in a vertical direction, and both sides of the third reinforcing plate being welded to the inner side of the third chamber to divide the third chamber into two sub-chambers that both extend in a vertical direction.

10. A rear door frame, characterized in that, Includes a roof rear crossbeam, a rear floor rear crossbeam, and a D-column structure as described in any one of claims 6-9; Both the rear crossbeam of the top cover and the rear crossbeam of the rear floor are tubular structures. The rear crossbeam of the top cover is fixedly connected between the upper end of the latch mounting column of the D-pillar structure and the upper end of the side-opening rear door hinge mounting column of the D-pillar structure. The rear floor beam is fixedly connected between the lower end of the locking mounting post of the D-pillar structure and the lower end of the side-opening rear door hinge mounting post of the D-pillar structure.

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