CN219728136U

CN219728136U - Mounting assembly, C post inner plate assembly structure and vehicle

Info

Publication number: CN219728136U
Application number: CN202321143676.7U
Authority: CN
Inventors: 宋红双; 鲁兴江
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-09-22
Anticipated expiration: 2033-05-12

Abstract

The utility model provides a mounting component, a C-pillar inner plate assembly structure and a vehicle. Comprising the following steps: the mounting plate is provided with a first mounting hole and a second mounting hole; a first reinforcing member fixed to a side of the mounting plate facing the inside of the cabin; a second reinforcement member fixed to a side of the mounting plate facing away from the first reinforcement member; wherein the first mounting hole is used for arranging the seat belt retractor, and the first reinforcement is used for fixing the seat belt retractor; the second mounting hole is used for allowing the seat back lock catch to pass through, and the second reinforcement piece is used for fixing the seat back lock catch. The utility model aims to solve the problem that the structural strength of the C-pillar inner plate at the position of a seat belt retractor and a seat back lock catch is low.

Description

Mounting assembly, C post inner plate assembly structure and vehicle

Technical Field

The embodiment of the utility model relates to the technical field of automobiles, in particular to a mounting component, a C-pillar inner plate assembly structure and a vehicle.

Background

The existing vehicles on the market are used for arranging two rows of seat belt retractors and seat back catches at the positions of the C-pillar inner plates, and the seat belt retractors and the seat back catches are required to be arranged, so that the corresponding positions of the C-pillar inner plates are required to have higher modal and structural strength.

But the safety belt retractor and the seat back lock catch of the current vehicle are respectively and independently arranged at the positions of the inner plates of the C columns, so that the structural strength is lower, the safety belt retractor and the seat back lock catch are easy to loosen when impacted, abnormal sound of the vehicle is caused, and the user experience is influenced.

Disclosure of Invention

The utility model provides a mounting component, a C-pillar inner plate assembly structure and a vehicle, and aims to solve the problem that the structural strength of the C-pillar inner plate for a seat belt retractor and a seat back lock catch is low.

A first aspect of the present utility model provides a mounting assembly for mounting a seat belt retractor and a seat back latch, comprising:

the mounting plate is provided with a first mounting hole and a second mounting hole;

a first reinforcing member fixed to a side of the mounting plate facing the inside of the cabin;

a second reinforcement member fixed to a side of the mounting plate facing away from the first reinforcement member;

wherein the first mounting hole is used for arranging the seat belt retractor, and the first reinforcement is used for fixing the seat belt retractor;

the second mounting hole is used for allowing the seat back lock catch to pass through, and the second reinforcement piece is used for fixing the seat back lock catch.

Optionally, a first reinforcing rib and a second reinforcing rib are formed on one side, facing the cabin, of the first reinforcing member, and the first reinforcing rib and the second reinforcing rib are arranged in a staggered mode.

Optionally, a first through hole is formed in the first reinforcement, a second through hole matched with the first through hole is formed in the mounting plate, bolts are arranged in the first through hole and the second through hole in a penetrating mode, and the first reinforcement is fixed with the safety belt retractor through the bolts.

Optionally, the second reinforcement member includes a connection plate, the connection plate is adapted to the shape of the side surface of the mounting plate facing away from the first reinforcement member, and is fixed to the side surface of the mounting plate facing away from the first reinforcement member (4).

Optionally, the second reinforcement member further includes an annular flange disposed along an edge of the connection plate and curved in a direction away from the mounting plate;

the annular flanging and the connecting plate are enclosed to form a bucket-shaped structure with an opening.

Optionally, a boss is formed on the mounting plate, the protruding direction of boss is towards in the car cabin, the seat back hasp is located on the boss, the second reinforcement is located the side that the boss deviates from the car cabin.

Optionally, a transition plate is formed on the mounting plate, a height difference exists between the boss and the rest of the mounting plate, and the boss is in smooth transition with the rest of the mounting plate through the transition plate.

Optionally, the first stiffener has a thickness of 1.2mm; the thickness of the second reinforcement is 3mm.

The second aspect of the utility model provides a C-pillar inner panel assembly structure comprising a C-pillar inner panel, a wheel cover panel, and a mounting assembly;

the mounting assembly is arranged on the C column inner plate and fixedly connected with the wheel cover plate.

A third aspect of the utility model provides a vehicle comprising a mounting assembly, or comprising a C-pillar inner panel assembly structure.

The mounting component, the C column inner plate assembly structure and the vehicle provided by the utility model have the following advantages:

the first mounting hole and the second mounting hole are formed in the mounting plate and are used for mounting the safety belt retractor and the seat back lock catch respectively, so that the safety belt retractor and the seat back lock catch are integrated; the first reinforcing piece arranged on the mounting plate has a reinforcing effect on the fixation of the safety belt retractor, the seat back lock catch penetrates through the mounting plate to be attached to the side face, away from the cabin, of the mounting plate and is fixedly connected with the side face, and the second reinforcing piece also has an effect of reinforcing structural strength and has an effect of preventing the seat back lock catch from falling out; through the arrangement, the overall structural strength is greatly enhanced, and the vibration of the safety belt retractor and the seat back lock catch when the vehicle is impacted is reduced, so that the possibility of abnormal sound of the vehicle is reduced, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a C-pillar inner panel assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the sectional B-B structure of FIG. 1;

FIG. 3 is a schematic view of a mounting plate according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the side of a mounting plate facing the outside of a vehicle according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a first reinforcement member according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a second reinforcement member according to an embodiment of the present utility model;

reference numerals: 1. a mounting plate; 2. a seatbelt retractor; 3. a seat back latch; 4. a first reinforcement; 5. a second reinforcement; 501. a connecting plate; 502. annular flanging; 6. a first reinforcing rib; 7. a second reinforcing rib; 8. a bolt; 9. a C column reinforcing plate; 101. a first through hole; 102. a second through hole; 11. a boss; 12. a transition plate; 13. a C column inner plate; 14. a wheel cover plate; 141. a wheel cover inner plate; 142. a wheel cover outer plate; 15. a first mounting hole; 16. and a second mounting hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The A column, the B column and the C column are respectively three vertical beams on the vehicle. The A column is arranged between the engine cabin and the cockpit and above the left rearview mirror and the right rearview mirror. The B-pillar extends from the roof to the floor between the front and rear seats of the cockpit. The C-pillar of the vehicle is located at the junction of the tail and roof of the vehicle. The A column, the B column and the C column are all used for enhancing the structural strength of the vehicle, and guaranteeing the life safety of personnel in the vehicle after the vehicle is impacted.

The C column is mainly used for bearing impact force from the rear, so that the life safety of rear-row personnel can be ensured. The existing vehicles on the market are used for arranging two rows of seat belt retractors and seat back catches at the positions of the C-pillar inner plates, and the seat belt retractors and the seat back catches are required to be arranged, so that the corresponding positions of the C-pillar inner plates are required to have higher modal and structural strength.

In view of this, the present utility model provides a mounting member, a C-pillar inner panel assembly structure, and a vehicle, which aim to solve the problem that the structural strength of the C-pillar inner panel for the positions of the seatbelt retractor and the seat back buckle is low.

Referring to fig. 1, 2 and 3, fig. 1 is a schematic structural view of a C-pillar inner panel assembly according to an embodiment of the present utility model; FIG. 2 is a schematic view of the sectional B-B structure of FIG. 1; fig. 3 is a schematic structural view of a side of a mounting plate facing the outside of a vehicle according to an embodiment of the present utility model.

A mounting assembly for mounting a seat belt retractor 2 and a seat back latch 3, comprising:

the mounting plate 1 is provided with a first mounting hole 15 and a second mounting hole 16;

a first reinforcement 4 fixed to a side of the mounting plate 1 facing the inside of the cabin;

a second reinforcement 5 fixed to a side of the mounting plate 1 facing away from the first reinforcement 4;

wherein the first mounting hole 15 is used for disposing the seatbelt retractor 2, and the first reinforcement 4 is used for fixing the seatbelt retractor 2;

the second mounting hole 16 is used for allowing the seat back lock catch 3 to pass through, and the second reinforcement 5 is used for fixing the seat back lock catch 3.

The mounting plate 1 is provided on a C-pillar inner panel 13 of the vehicle, and one side of the mounting plate 1 faces into the cabin of the vehicle and the other side faces out of the vehicle. The first mounting hole 15 and the second mounting hole 16 formed on the mounting plate 1 are used for mounting the seat belt retractor 2 and the seat back lock catch 3. Wherein, the first mounting hole 15 is provided for the installation of the seat belt retractor 2, and the second mounting hole 16 is provided for the installation of the seat back lock catch 3. The seatbelt retractor 2 is described below:

the seat belt retractor 2 is the core component of the vehicle seat belt and accounts for 60% -95% of the belt cost. The seat belt retractor 2 is characterized in that the part for sensing the acceleration of the webbing is composed of a circular webbing spool and at least one ratchet wheel fixedly arranged at the end of the spool. The circular winding shaft is movably penetrated in the oval shaft holes of the main boards at the two sides of the winding bin, and an inner ratchet is arranged on the inner side of the main board and obliquely above the oval shaft holes, and forms a locking part with the ratchet.

The safety belt is made of extremely high-strength synthetic fibers, after the safety belt is tied, the safety belt retractor 2 automatically tightens the safety belt, when the vehicle suddenly brakes, collides with the front or rolls, the passenger can rapidly and violently stretch the safety belt, and at the moment, the safety belt can be clamped by the self-locking function of the safety belt retractor 2 in the moment, so that the passenger clings to the seat, and the passenger is prevented from falling out of the vehicle or being injured by collision.

Referring to fig. 1, in order to enhance the fixation of the seatbelt retractor 2, the following is made: the safety belt retractor 2 is fixed in the first mounting hole 15, and first reinforcement 4 is close to first mounting hole 15 setting, and first reinforcement 4 is located the mounting panel 1 towards the one side in the automobile cabin, and the equal fixed connection of first reinforcement 4 and mounting panel 1 and safety belt retractor 2. Through the above arrangement, the first reinforcement 4 not only has the effect of reinforcing and fixing the seatbelt retractor 2, but also has a good positioning effect, and can effectively limit the position of the seatbelt retractor 2 and prevent the seatbelt retractor from shaking after being impacted.

Referring to fig. 2, in order to enhance the fixation of the seat back latch 3, the following is made: the second reinforcement 5 and the seat back latch 3 are respectively located on both sides of the mounting plate 1, specifically, the second reinforcement 5 is located on one side of the mounting plate 1 facing the outside of the vehicle, the seat back latch 3 is located on one side of the mounting plate 1 facing the inside of the vehicle cabin, and the second reinforcement 5 penetrates through the mounting plate 1 to be fixedly connected with the seat back latch 3, and through the additionally arranged second reinforcement 5, the thickness of the mounting plate 1 at the connecting position of the seat back latch 3 is increased, and the overall structural strength is increased.

Referring to fig. 4 and 5, simultaneously, the second reinforcement 5 is plate-shaped, and its shape and mounting panel 1 face one side outside the car adaptation, so second reinforcement 5 can paste the fastening fixedly connected with mounting panel 1 face one side outside the car, and whole suitability is better, improves the space saving in the while.

In the embodiment of the present utility model, the connection between the first reinforcement member 4 and the mounting plate 1 is spot welding.

In the embodiment of the present utility model, the connection between the second reinforcement member 5 and the mounting plate 1 is spot welding.

In the embodiment of the present utility model, the connection between the first reinforcement 4 and the seatbelt retractor 2 is spot-welding.

In the embodiment of the utility model, the second reinforcement 5 is connected to the seat back lock catch 3 by spot welding.

By the above arrangement: the first mounting hole 15 and the second mounting hole 16 formed on the mounting plate 1 are respectively used for mounting the safety belt retractor 2 and the seat back lock catch 3, so that the integrated arrangement of the safety belt retractor 2 and the seat back lock catch 3 is realized; the first reinforcing piece 4 arranged on the mounting plate 1 has a reinforcing effect on the fixation of the safety belt retractor 2, the second reinforcing piece 5 and the seat back lock catch 3 are respectively positioned on two sides of the mounting plate 1, and the arrangement of the second reinforcing piece 5 also has an effect of enhancing the structural strength and has an effect of preventing the seat back lock catch 3 from falling out; through the arrangement, the overall structural strength is greatly enhanced, and the vibration of the safety belt retractor 2 and the seat back lock catch 3 when the vehicle is impacted is reduced, so that the possibility of abnormal sound of the vehicle is reduced, and the user experience is improved.

Referring to fig. 5, in order to further enhance the structural strength of the first reinforcing member 4, thereby achieving the effect of increasing the overall structural strength, in some embodiments of the present utility model, there are provided:

the first reinforcing piece 4 is towards one side in the cabin is formed with first strengthening rib 6 and second strengthening rib 7, first strengthening rib 6 and second strengthening rib 7 crisscross setting.

The provision of the first reinforcing bead 6 and the second reinforcing bead 7 enhances the overall structural strength of the first reinforcing member 4. Wherein, first strengthening rib 6 and second strengthening rib 7 are the strip structure on protruding first reinforcement 4 surface, and its protruding direction is the side of first reinforcement 4 towards the car in-cabin, and the setting of first strengthening rib 6 and second strengthening rib 7 has increased the structural strength of first reinforcement 4 by a wide margin under the prerequisite of guaranteeing the lightweight design of vehicle as far as possible.

Referring to fig. 5, in some embodiments of the present utility model, the number of the first reinforcing ribs 6 and the second reinforcing ribs 7 is several, where the first reinforcing ribs 6 are arranged side by side, the second reinforcing ribs 7 are arranged side by side, and the first reinforcing ribs 6 and the second reinforcing ribs 7 are staggered.

In some embodiments of the present utility model, the second reinforcing bead 7 may be arc-shaped in shape, and the arc-shaped second reinforcing bead 7 extends along a portion of the edge of the first reinforcing member 4 to better increase the structural strength.

Referring to fig. 2, to achieve the securement between the first reinforcement 4 and the seatbelt retractor 2, in some embodiments of the present utility model, there is provided:

referring to fig. 3 and 5, the first reinforcement 4 is provided with a first through hole 101, the mounting plate 1 is provided with a second through hole 102 adapted to the first through hole, bolts 8 are inserted into the first through hole 101 and the second through hole 102, and the first reinforcement 4 is fixed to the seatbelt retractor 2 by the bolts 8.

The shape of the first through hole 101 is matched with the shape and the size of the second through hole 102 so that the bolt 8 can pass through, and the fixing effect is good simply and quickly through the mode of fixing the bolt 8.

In some embodiments of the present utility model, the number of the first through holes 101 may be plural, and the plural first through holes 101 are disposed at different positions of the first reinforcement 4 in a dispersed manner to better fix between the first reinforcement 4 and the seatbelt retractor 2.

Referring to fig. 4 and 5, to further enhance structural strength, in some embodiments of the present utility model, there are the following arrangements:

the second reinforcement 5 comprises a connection plate 501, wherein the connection plate 501 is matched with the side surface of the mounting plate 1 facing away from the first reinforcement 4 in shape and is fixedly attached to the side surface of the mounting plate 1 facing away from the first reinforcement 4.

The connecting plate 501 is fixedly connected to the side of the mounting plate 1 facing away from the first reinforcing member 4, and because the thickness of the mounting plate 1 is increased by the arrangement of the connecting plate 501, the connecting plate can be used as a reinforcing structure of the mounting plate 1, and the structural strength is greatly improved.

Referring to fig. 5, further, in some embodiments of the utility model, there are the following settings:

the second reinforcement member 5 further comprises an annular flange 502, and the annular flange 502 is disposed along the edge of the connecting plate 501 and is bent in a direction away from the mounting plate 1;

wherein, the annular flange 502 and the connecting plate 501 enclose to form a bucket structure with an opening.

The annular flange 502 is arranged along the edge of the connecting plate 501, and meanwhile, the annular flange 502 is fixedly connected with the connecting plate 501, so that the annular flange 502 and the connecting plate 501 are enclosed to form a bucket-shaped structure with an opening. The bucket-shaped structure not only increases the thickness of the mounting plate 1 and improves the structural strength, but also can effectively absorb impact and vibration, thereby playing a role in buffering and damping.

In some embodiments of the present utility model, the connection between annular flange 502 and connection plate 501 is by spot welding.

Referring to fig. 5, in order to further enhance the structural strength of the mounting plate 1, in some embodiments of the utility model, there are provided:

the mounting plate 1 is provided with a boss 11, the protruding direction of the boss 11 faces into the cabin, the seat back lock catch 3 is arranged on the boss 11, and the second reinforcement 5 is arranged on the side surface of the boss 11, which faces away from the cabin.

The boss 11 and mounting panel 1 integrated into one piece, boss 11 is mounting panel 1 stamping forming formation, and the setting of boss 11 makes the surface of mounting panel 1 between form the difference in height, and then is difficult for producing deformation after receiving the impact, and then has strengthened the rigidity of mounting panel 1.

Specifically, the second reinforcement member 5 is fixedly connected to a side of the mounting plate 1 facing the vehicle exterior, that is, a side of the boss 11 facing the vehicle exterior. The shape adaptation of the second reinforcement 5 and the boss 11 increases the structural strength of the mounting plate 1 at the location of the seat back latch 3.

Referring to fig. 5, there is a height difference between the mounting surface of the seatbelt retractor 2 and the mounting surface of the seat back buckle 3 due to the presence of the boss 11, in order to prevent cracking during press forming, in some embodiments of the present utility model, there is provided the following arrangement:

the mounting plate 1 is provided with a transition plate 12, the boss 11 and the rest of the mounting plate 1 have a height difference, and the boss 11 is in smooth transition with the rest of the mounting plate 1 through the transition plate 12.

The arrangement of the transition plate 12 ensures that the height between the boss 11 and other parts on the mounting plate 1 can be gradually reduced, and the transition is smooth, thereby playing the role of preventing the mounting plate 1 from cracking in the process of stamping forming.

Based on the same inventive concept, the utility model also provides a C-pillar inner panel assembly structure, referring to FIG. 1, comprising a C-pillar inner panel 13, a wheel cover panel 14, and a mounting assembly;

wherein, the installation component is located on the C post inner plate 13, and with the wheel casing board 14 fixed connection.

Referring to fig. 1, the wheel cover plate 14 includes a wheel cover inner plate 141 and a wheel cover outer plate 142, wherein the wheel cover outer plate 142 and the wheel cover inner plate 141 are fixedly connected, and the wheel cover outer plate 142 and the wheel cover inner plate 141 are fixedly connected with the mounting plate 1.

At the position where the mounting plate 1 is connected to the wheel cover inner plate 141 and the wheel cover outer plate 142, the mounting plate 1 is overlapped to the wheel cover inner plate 141 and the wheel cover outer plate 142, and welding is performed at the overlapped portion to achieve a fixed connection.

At the connection portion of the wheel cover inner plate 141 and the mounting plate 1, the edge of the mounting plate 1 gradually increases the length of the lap welding portion along with the shape of the wheel cover inner plate 141, thereby achieving the effect of enhancing the structural strength.

The C-pillar inner panel 13 assembly structure further includes a C-pillar reinforcement panel 9 provided at the connection panel 501 toward the outside of the vehicle, the C-pillar reinforcement panel 9 being used to reinforce the structural strength of the C-pillar position.

Based on the same inventive concept, the utility model also provides a vehicle, which is characterized in that the vehicle comprises a mounting component or comprises a C-pillar inner plate assembly structure.

In the embodiment of the utility model, the thickness of the mounting plate 1 is 1.6mm.

The thickness of the first stiffener 4 is 1.2mm.

The thickness of the second reinforcement 5 is 3mm.

Overall, the utility model has the following advantages:

in the first aspect, the first mounting hole 15 and the second mounting hole 16 formed on the mounting plate 1 are respectively used for mounting the seat belt retractor 2 and the seat back lock catch 3, so that the integrated arrangement of the seat belt retractor 2 and the seat back lock catch 3 is realized; the first reinforcing piece 4 arranged on the mounting plate 1 has a reinforcing effect on the fixation of the safety belt retractor 2, the second reinforcing piece 5 and the seat back lock catch 3 are respectively positioned on two sides of the mounting plate 1, and the arrangement of the second reinforcing piece 5 also has an effect of enhancing the structural strength and has an effect of preventing the seat back lock catch 3 from falling out; through the arrangement, the overall structural strength is greatly enhanced, and the vibration of the safety belt retractor 2 and the seat back lock catch 3 when the vehicle is impacted is reduced, so that the possibility of abnormal sound of the vehicle is reduced, and the user experience is improved;

in the second aspect, the provision of the first reinforcing bead 6 and the second reinforcing bead 7 enhances the overall structural strength of the first reinforcing member 4. The first reinforcing ribs 6 and the second reinforcing ribs 7 are strip-shaped structures protruding out of the surface of the first reinforcing member 4, the protruding direction of the first reinforcing member 4 faces the side face in the vehicle cabin, and the structural strength of the first reinforcing member 4 is greatly improved on the premise that the lightweight design of the vehicle is guaranteed as much as possible due to the arrangement of the first reinforcing ribs 6 and the second reinforcing ribs 7;

in a third aspect, the annular flange 502 of the second reinforcement 5 forms a funnel-like structure with the web 501 of the second reinforcement 5. The box-shaped structure has a cavity, so that the box-shaped structure can effectively absorb impact and vibration, and has the effects of buffering and damping.

Fourth aspect, boss 11 and mounting panel 1 integrated into one piece, boss 11 are mounting panel 1 stamping forming formation, and the setting of boss 11 makes the difference in height form between the surface of mounting panel 1, and then is difficult for producing deformation after receiving the impact to the rigidity of mounting panel 1 has been strengthened.

It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Moreover, relational terms such as "first" and "second" may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, or order, and without necessarily being construed as indicating or implying any relative importance. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device comprising the element.

The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present contribution to the art may be better appreciated. While various modifications of the embodiments and applications of the utility model will occur to those skilled in the art, it is not necessary and not intended to be exhaustive of all embodiments, and obvious modifications or variations of the utility model are within the scope of the utility model.

Claims

1. A mounting assembly for mounting a seatbelt retractor (2) and a seat back latch (3), comprising:

the mounting plate (1), the mounting plate (1) is provided with a first mounting hole (15) and a second mounting hole (16);

a first reinforcement (4) fixed to a side of the mounting plate (1) facing the inside of the cabin;

a second reinforcement (5) fixed to a side of the mounting plate (1) facing away from the first reinforcement (4);

wherein the first mounting hole (15) is used for arranging the seat belt retractor (2), and the first reinforcement (4) is used for fixing the seat belt retractor (2);

the second mounting hole (16) is used for allowing the seat back lock catch (3) to pass through, and the second reinforcement (5) is used for fixing the seat back lock catch (3).

2. The mounting assembly according to claim 1, characterized in that the side of the first reinforcement (4) facing into the cabin is formed with first and second reinforcement ribs (6, 7), the first and second reinforcement ribs (6, 7) being staggered.

3. The mounting assembly according to claim 1, wherein the first reinforcement (4) is provided with a first through hole (101), the mounting plate (1) is provided with a second through hole (102) adapted to the first through hole (101), bolts (8) are arranged in the first through hole (101) and the second through hole (102) in a penetrating manner, and the first reinforcement (4) is fixed with the seat belt retractor (2) through the bolts (8).

4. The mounting assembly according to claim 1, characterized in that the second reinforcement (5) comprises a connection plate (501), which connection plate (501) is form-fitted with the side of the mounting plate (1) facing away from the first reinforcement (4) and is snugly fixed to the side of the mounting plate (1) facing away from the first reinforcement (4).

5. The mounting assembly according to claim 4, wherein the second reinforcement (5) further comprises an annular flange (502), the annular flange (502) being arranged along an edge of the connection plate (501) and being curved away from the mounting plate (1);

wherein the annular flanging (502) and the connecting plate (501) are enclosed to form a bucket-shaped structure with an opening.

6. The mounting assembly according to claim 1, characterized in that a boss (11) is formed on the mounting plate (1), the protruding direction of the boss (11) faces into the cabin, the seat back lock catch (3) is arranged on the boss (11), and the second reinforcement (5) is located on the side of the boss (11) facing away from the cabin.

7. The mounting assembly according to claim 6, characterized in that a transition plate (12) is formed on the mounting plate (1), the boss (11) has a height difference from the rest of the mounting plate (1), and the boss (11) is smoothly transited with the rest of the mounting plate (1) through the transition plate (12).

8. The mounting assembly according to claim 1, characterized in that the first reinforcement (4) has a thickness of 1.2mm; the thickness of the second reinforcement (5) is 3mm.

9. A C-pillar inner panel assembly structure, characterized in that the assembly structure comprises a C-pillar inner panel (13), a wheel cover panel (14), and a mounting assembly as claimed in any one of claims 1 to 8;

the mounting assembly is arranged on the C-pillar inner plate (13) and is fixedly connected with the wheel cover plate (14).

10. A vehicle comprising the mounting assembly of any one of claims 1-8, or comprising the C-pillar inner panel assembly structure of claim 9.