Lock catch reinforcing plate, lock catch mounting structure, and vehicle

Abstract

The application provides a lock catch reinforcing plate, a lock catch mounting structure and a vehicle, and belongs to the technical field of vehicle body reinforcement. The lock catch reinforcing plate comprises a reinforcing main body, a first extension plate and a second extension plate. The reinforcing main body has a U-shaped structure. One U-shaped side of the reinforcing main body is provided with a first clearance. The two ends of the reinforcing main body extend along the door plate edge of the door plate, and correspond to the upper and lower ends of the lock catch mounting hole. The first extension plate is through the first clearance to form a first part and a second part arranged on the upper and lower ends of the lock catch mounting hole. The two ends of the second extension plate extend along the upper and lower ends of the reinforcing main body. The reinforcing main body, the first extension plate and the second extension plate form a few-shaped structure with an opening facing the outside of the vehicle body. The lock catch mounting structure comprises the lock catch reinforcing plate. The vehicle comprises the lock catch mounting structure. The lock catch reinforcing plate, the lock catch mounting structure and the vehicle provided by the application have high connection and support strength at the lock catch connection position, good safety performance and long service life.

Description

Technical Field

[0001] This application belongs to the field of vehicle body reinforcement technology, and more specifically, relates to a latch reinforcement plate, a latch mounting structure, and a vehicle. Background Technology

[0002] Vehicle safety and reliability are fundamental to safe driving. As a crucial component of a vehicle, the rigidity of the door latch directly impacts its durability and safety. Therefore, to ensure the door latch structure can withstand significant forces and prevent lock loosening and failure, a reinforcing structure is typically incorporated into the latch area.

[0003] In existing technologies, a structure that adds a planar or vertically arranged reinforcing plate to the door latch is often used. However, this structure still faces the problem of frequent deformation and damage during long-term use. Therefore, the actual strength after reinforcement is insufficient and cannot withstand the force of frequent opening and closing of the door, which affects the safety performance and service life of the vehicle. Utility Model Content

[0004] The purpose of this application is to provide a latch reinforcement plate, a latch mounting structure, and a vehicle, aiming to solve the technical problem that the existing rear door latches are not strong enough and cannot withstand the force of frequent opening and closing of the doors, thus affecting the safety performance and service life of the vehicle.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: Firstly, a locking reinforcement plate is provided, comprising: The reinforcing body has a U-shaped structure with an opening on one side; a first clearance opening is provided on one of the U-shaped sides of the reinforcing body, which is used to correspond to the inside and outside of the latch mounting hole on the door panel; the two ends of the reinforcing body extend along the edge of the door panel and extend through the upper and lower ends of the latch mounting hole respectively. A first extension plate is disposed on one of the U-shaped sides of the reinforcing body; the first extension plate is penetrated by the first clearance opening to form a first part and a second part respectively disposed at the upper and lower ends of the latch mounting hole; and The second extension plate is disposed on another U-shaped side of the reinforcing body, and its two ends extend vertically along with the reinforcing body; The reinforcing body, the first extension plate, and the second extension plate form a zigzag structure with an opening facing outwards from the vehicle body.

[0006] Compared with the prior art, the solution shown in this application embodiment enhances the support strength of the latch reinforcement plate by forming a zigzag structure with the reinforcing body, the first extension plate, and the second extension plate; and the arrangement of the first extension plate and the second extension plate facilitates the connection between the latch reinforcement plate and the door panel; the reinforcing body is provided with a first clearance opening corresponding to the latch mounting hole, which allows the reinforcing body to increase its support and connection strength without affecting the latch structure.

[0007] Specifically, the two ends of the reinforcing body extend along the edge of the door panel and correspondingly extend past the upper and lower ends of the latch mounting hole, thereby increasing the support strength of the reinforcing body at the upper and lower ends of the latch mounting hole, thus forming a strength support system that covers the latch mounting hole from top to bottom. The first clearance opening divides the first extension plate into a first part and a second part with upper and lower intervals, which can be used to connect the latch reinforcing plate at the upper and lower ends of the latch mounting hole, thereby enhancing the connection strength between the first extension plate and the door panel. Furthermore, the first extension plate and the second extension plate extend with the reinforcing body, so that the first extension plate and the second extension plate form a connection system that covers the latch mounting hole from top to bottom, thereby ensuring the connection strength. Therefore, the latch reinforcing plate provided in this application has high connection and support strength, can withstand the force of frequent opening and closing of the door, and ensures the safety performance and service life of the vehicle.

[0008] In one possible implementation, the second extension plate extends downward to the bottom of the cavity of the door panel, the lower end of the reinforcing body extends downward through the second extension plate, and the lower end of the reinforcing body is also provided with a second clearance opening; wherein the second clearance opening is spaced apart from the first clearance opening, and the second part is placed between the first clearance opening and the second clearance opening.

[0009] By providing a second clearance opening on the second extension plate, interference between the latch reinforcement plate and the C-pillar reinforcement plate or other internal structures is avoided; and a second part is provided between the first clearance opening and the second clearance opening, which can ensure the support strength of the reinforcement body and increase the connection strength between the latch reinforcement plate and the door panel.

[0010] In some embodiments, the upper end of the reinforcing body extends upward to be flush with the bottom of the window of the door panel, and the length of the first portion is greater than the length of the second portion.

[0011] By increasing the extension length of the upper part of the reinforcing body and making the length of the first part greater than the length of the second part, the support range of the reinforcing body is expanded, thereby increasing the support strength of the locking reinforcing plate for the locking area.

[0012] In one possible implementation, the U-shaped bottom of the reinforcing body has a first welding surface, the side of the reinforcing body connected to the second extension plate has a second welding surface, and the side of the second extension plate facing the inside of the vehicle body has a third welding surface; the first welding surface, the second welding surface and the third welding surface are used to connect with the C-pillar reinforcing plate.

[0013] By setting three welding positions—the first welding surface, the second welding surface, and the third welding surface—the connection strength between the locking reinforcement plate and the C-pillar reinforcement plate is ensured.

[0014] In some embodiments, in the extension direction of the reinforcing body, the first welding surface extends downward from the upper end of the reinforcing body through the first clearance opening, and the second welding surface extends upward from the lower end of the reinforcing body to a position not lower than the lower end of the first welding surface.

[0015] By reasonably setting the extension length of the first welding surface and the second welding surface, it is ensured that there is always a welding position between the locking reinforcement plate and the C-pillar reinforcement plate in the extension direction of the reinforcement body, thereby improving the connection strength between the locking reinforcement plate and the C-pillar reinforcement plate.

[0016] For example, the third welding surface is located near the lower end of the second extension plate.

[0017] By properly setting the position of the third welding surface, the insufficient connection at the second clearance opening can be compensated for, thus ensuring the overall connection strength of the locking reinforcement plate.

[0018] For example, a locking nut plate is also provided on the inner side of the U-shape of the reinforcing body, and the locking nut plate is connected to the reinforcing body and the C-pillar reinforcing plate respectively.

[0019] The locking nut plate is used to enhance the connection strength between the main body and the C-pillar reinforcement plate.

[0020] In one possible implementation, the first part has a fourth welding surface, the second part has a fifth welding surface, and the second extension plate has a sixth welding surface, wherein the fourth welding surface, the fifth welding surface, and the sixth welding surface are used to connect with the door panel.

[0021] The connection strength between the latch reinforcement plate and the door panel is enhanced by setting a fourth, fifth, and sixth welding surface.

[0022] In some embodiments, in the extending direction of the reinforcing body, the portion of the second extension plate connected to the C-pillar reinforcing plate is vertically offset from the sixth welding surface.

[0023] By staggering the welding position of the C-pillar reinforcement plate with the sixth welding surface, the problem of affecting the welding connection strength when the two welding positions coincide is avoided, thus ensuring the welding quality.

[0024] Secondly, embodiments of this application also provide a locking mounting structure, including: The door panel has a latch mounting hole that runs through the inside and outside of the vehicle body. A C-pillar reinforcement plate is connected to the inner side of the door panel, and a hollow mounting space is formed between the plate and the door panel; and The aforementioned locking reinforcement plate is disposed within the installation space; the reinforcement body is connected to the C-pillar reinforcement plate, and the first extension plate and the second extension plate are correspondingly connected to the door panel.

[0025] The latch mounting structure provided in this application embodiment includes the aforementioned latch reinforcement plate, and therefore has all the beneficial effects of the aforementioned latch reinforcement plate. It can enhance the connection and support strength at the latch connection point to adapt to the force of frequent opening and closing of the vehicle door, and ensure the safety performance and service life of the vehicle.

[0026] Thirdly, embodiments of this application also provide a vehicle including the aforementioned latch mounting structure.

[0027] The vehicle provided in this application embodiment has all the beneficial effects of the above-mentioned latch mounting structure because it includes the latch mounting structure described above. It can enhance the connection and support strength of the latch connection to adapt to the force of frequent opening and closing of the door, and ensure the safety performance and service life of the vehicle. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram illustrating the installation of the locking reinforcement plate provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the locking reinforcement plate provided in the embodiments of this application; Figure 3 This is a structural schematic diagram of the connection side between the latch reinforcement plate and the C-pillar reinforcement plate provided in an embodiment of this application; Figure 4 This is a structural schematic diagram of the connection between the latch reinforcement plate and the door panel provided in an embodiment of this application; Figure 5A schematic diagram of the installation structure of the C-pillar reinforcement plate provided in the embodiments of this application; Figure 6 A schematic diagram of the separate structure of the rear side window inner panel, the locking nut plate, the locking reinforcement plate, and the C-pillar reinforcement plate provided in the embodiments of this application.

[0030] In the diagram: 1. Locking reinforcement plate; 11. Reinforcement body; 111. First clearance opening; 112. Second clearance opening; 113. First welding surface; 114. Second welding surface; 12. First extension plate; 121. First part; 1211. Fourth welding surface; 122. Second part; 1221. Fifth welding surface; 13. Second extension plate; 131. Third welding surface; 132. Sixth welding surface; 2. Door panel; 21. Rear side window inner panel; 211. Locking mounting hole; 22. Rear wheel arch outer panel; 3. Locking nut plate; 4. C-pillar reinforcement plate. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0032] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] It should be noted that the orientation or positional relationship indicated by "inner", "outer", "upper", "lower" etc. in this embodiment is based on the orientation of the vehicle itself. Among them, the top of the vehicle represents "upper", the bottom of the vehicle represents "lower", the "inner" side refers to the side facing the inside of the passenger compartment, and the "outer" side refers to the side facing the outside of the passenger compartment.

[0035] It should be understood that the door panel 2 includes a rear wheel arch outer panel 22 and a rear side window inner panel 21. The rear wheel arch outer panel 22 covers the rear wheel, and the rear side window inner panel 21 is connected to the rear wheel arch outer panel 22. Furthermore, a latch mounting hole 211 and a window are provided on the rear side window inner panel 21. The latch reinforcement plate 1 is used to increase the strength of the latch mechanism connection.

[0036] In the existing technology, the traditional latch reinforcement structure is often only set below the latch mounting hole 211, and the actual support strength is not great. The shape is mainly to fit the inner panel 21 of the rear side window. The structure is simple and the size is small. Therefore, it is easy to deform and be damaged during frequent opening and closing of the door, and it is poor in terms of durability and safety.

[0037] The C-pillar reinforcement plate 4 is usually installed on the side of the rear window inner panel 21 facing the interior of the vehicle to increase the support strength of the C-pillar. Specifically, an outwardly protruding cavity structure is provided on the rear window inner panel 21, and the C-pillar reinforcement plate 4 covers the corresponding part of the cavity structure and extends to the door panel edge of the rear window inner panel 21.

[0038] Please refer to the following: Figures 1 to 6 The following description will be provided regarding the locking reinforcement plate 1, the locking installation structure, and the vehicle provided in this application. The latch reinforcement plate 1 includes a reinforcement body 11, a first extension plate 12, and a second extension plate 13. The reinforcement body 11 has a U-shaped structure with an opening on one side. A first clearance opening 111 is provided on one of the U-shaped sides of the reinforcement body 11, which corresponds to the latch mounting hole 211 on the door panel 2. Both ends of the reinforcement body 11 extend along the edge of the door panel 2 and extend through the upper and lower ends of the latch mounting hole 211. The first extension plate 12 is provided on one of the U-shaped sides of the reinforcement body 11. The first extension plate 12 passes through the first clearance opening 111 to form a first part 121 and a second part 122 respectively located at the upper and lower ends of the latch mounting hole 211. The second extension plate 13 is provided on the other U-shaped side of the reinforcement body 11, and both ends extend up and down with the reinforcement body 11. The reinforcement body 11, the first extension plate 12, and the second extension plate 13 form a Z-shaped structure with the opening facing outwards from the vehicle body.

[0039] It is important to understand that the U-shaped structure design of the reinforcing body 11 allows the latch reinforcement plate 1, after being installed on the door, to form a surrounding reinforcement effect on the latch mounting area from the inside of the vehicle body. Compared to traditional planar or vertically arranged reinforcement plates, the U-shaped structure has better spatial adaptability and structural stability, and can more effectively disperse the force exerted on the latch mounting area when the door is opened and closed, reducing local stress concentration and thus reducing the risk of deformation and damage to the latch mounting hole 211 and surrounding area.

[0040] Specifically, the U-shaped structure of the reinforced main body 11 includes a U-shaped base plate and two connecting plates on both sides of the base plate, the two connecting plates forming two U-shaped sides; one end of the connecting plates on both sides is fixedly connected to the base plate, and the other end extends towards the rear window inner panel 21 to form a U-shaped opening facing the outside of the vehicle; furthermore, the connecting plate near the edge of the door panel is connected to a second extension plate 13, and the connecting plate near the window is connected to the aforementioned first extension plate 12.

[0041] Optionally, the two connecting plates and the base plate are at an obtuse angle, so that the opening formed by the connecting plates and the base plate on both sides gradually increases from the base plate side to the rear window inner panel 21 side, thereby facilitating the connection with the C-pillar reinforcing plate 4.

[0042] Furthermore, uneven protrusions and grooves are provided on the two connecting plates of the reinforcing main body 11. The protrusions and grooves are spaced apart to increase the plate surface support area on the connecting plates, thereby improving the support strength of the connecting plates on both sides.

[0043] The first extension plate 12 is provided at the first part 121 and the second part 122 at the upper and lower ends of the latch mounting hole 211, which can support and constrain the latch mounting area from different directions, effectively suppressing the deformation of the latch mounting hole 211 during the opening and closing of the door, and enhancing the reliability of the latch mounting structure.

[0044] The extension of the second extension plate 13 can increase the contact area between the latch reinforcement plate 1 and the door panel 2, and enhance the connection strength between the two, so that the reinforcement effect of the latch reinforcement plate 1 on the latch installation area of ​​the door panel 2 is more significant, and the overall structural rigidity of the door latch is effectively improved.

[0045] Optionally, the first extension plate 12 and the second extension plate 13 both extend along the reinforcing body 11, and both the upper and lower ends extend through the upper and lower ends of the latch mounting hole 211, so as to increase the support strength by increasing the support length.

[0046] Additionally, it should be noted that the extension direction of the reinforcing body 11 is not entirely numerical or horizontal, but extends along the curvature of the door panel edge of the door panel 2. Its main direction is vertical, but the middle of the reinforcing body 11 has an arc curving towards the latch mounting hole 211, which can adapt to the shape of the door panel 2 and provide targeted reinforcement support for the latch mounting area. Similarly, the first extension plate 12 and the second extension plate 13 also extend along the extension direction of the reinforcing body 11, and are not completely vertical structures. Furthermore, the width of the first extension plate 12 and the second extension plate 13 is not fixed, and their specific width dimensions can be selectively set according to actual needs.

[0047] Compared with the prior art, the latch reinforcement plate 1 provided in this application enhances the support strength of the latch reinforcement plate 1 by forming a zigzag structure with the reinforcement body 11, the first extension plate 12, and the second extension plate 13; and the arrangement of the first extension plate 12 and the second extension plate 13 facilitates the connection between the latch reinforcement plate 1 and the door panel 2; the reinforcement body 11 is provided with a first clearance opening 111 corresponding to the latch mounting hole 211, so that the reinforcement body 11 can increase its support and connection strength without affecting the latch structure.

[0048] Specifically, the two ends of the reinforcing body 11 extend along the edge of the door panel 2, corresponding to the upper and lower ends of the latch mounting hole 211, thereby increasing the support strength of the reinforcing body 11 at the upper and lower ends of the latch mounting hole 211. This forms a strength support system that covers the latch mounting hole 211 from top to bottom. The first clearance opening 111 divides the first extension plate 12 into a first part 121 and a second part 122, which are spaced apart vertically. The first part 121 and the second part 122 correspond to the two connections of the latch reinforcing plate 1 at the upper and lower ends of the latch mounting hole 211, thereby enhancing the connection strength between the first extension plate 12 and the door panel 2. Furthermore, the first extension plate 12 and the second extension plate 13 extend along the reinforcing body 11, so that the first extension plate 12 and the second extension plate 13 form a connection system that covers the latch mounting hole 211 from top to bottom, thus ensuring the connection strength. Therefore, the latch reinforcing plate 1 provided in this application has high connection and support strength, can adapt to the force of frequent opening and closing of the door, and ensures the safety performance and service life of the vehicle.

[0049] Please see Figure 1 In some possible embodiments, the second extension plate 13 extends downward to the bottom of the cavity of the door panel 2, the lower end of the reinforcing body 11 extends downward through the second extension plate 13, and the lower end of the extension of the reinforcing body 11 is also provided with a second clearance opening 112; wherein, the second clearance opening 112 is spaced apart from the first clearance opening 111, and the second part 122 is placed between the first clearance opening 111 and the second clearance opening 112.

[0050] It should be understood that a C-pillar reinforcement plate 4 is often provided on the side of the latch reinforcement plate 1 facing the inside of the car body, and an upwardly protruding rear wheel arch outer plate 22 is provided at the bottom of the recess of the door panel 2. Therefore, after the second extension plate 13 extends downward to the bottom of the recess of the door panel 2, it will be close to the C-pillar reinforcement plate 4 or the rear wheel arch outer plate 22.

[0051] By providing a second clearance opening 112 on the second extension plate 13, interference between the latch reinforcement plate 1 and the C-pillar reinforcement plate 4 or other internal structures is avoided; and a second part 122 is provided between the first clearance opening 111 and the second clearance opening 112, which can ensure the support strength of the reinforcement body 11 and increase the connection strength between the latch reinforcement plate 1 and the door panel 2.

[0052] The second extension plate 13 extends downward to the bottom of the recess in the door panel 2, providing additional support to the bottom of the recess. During the opening and closing of the door, the bottom of the recess is easily affected by stress. The support of the second extension plate 13 can effectively reduce the deformation of the bottom of the recess, avoiding adverse effects on the latch installation area due to the deformation of the bottom of the recess, thereby ensuring the stability of the latch installation structure.

[0053] The extension of the lower end of the main body 11 increases the support range below the latch installation area, further stabilizing the latch installation structure.

[0054] It should be noted that the length of the lower end of the reinforcing body 11 extending downward through the second extension plate 13 should not be too large, so as to avoid interference between the reinforcing body 11 and the bottom rear wheel cover plate.

[0055] Please see Figure 1 In some embodiments, the upper end of the reinforcing body 11 extends upward to be flush with the bottom of the window of the door panel 2, and the length of the first part 121 is greater than the length of the second part 122.

[0056] It is important to understand that during the opening and closing of the car door, the outer periphery of the latch area will also be subjected to certain stress. The extension of the upper part of the main body 11 can effectively disperse the stress in this area, reduce the impact of deformation around the latch area on the latch installation area, ensure the stability of the overall structure of the car door in the latch installation area and its surroundings, and improve the overall strength and reliability of the car door.

[0057] In addition, by increasing the extension length of the upper end of the reinforcing body 11 and making the length of the first part 121 greater than the length of the second part 122, the support range of the reinforcing body 11 is expanded, thereby increasing the support strength of the locking reinforcing plate 1 for the locking area.

[0058] Please see Figure 3 In some possible embodiments, the U-shaped bottom of the reinforcing body 11 has a first welding surface 113, the side of the reinforcing body 11 connected to the second extension plate 13 has a second welding surface 114, and the side of the second extension plate 13 facing the inside of the vehicle body has a third welding surface 131; the first welding surface 113, the second welding surface 114 and the third welding surface 131 are used to connect with the C-pillar reinforcing plate 4.

[0059] By setting three welding positions—the first welding surface 113, the second welding surface 114, and the third welding surface 131—the connection strength between the latch reinforcement plate 1 and the C-pillar reinforcement plate 4 is ensured. Through welding, the latch reinforcement plate 1 and the C-pillar reinforcement plate 4 can be firmly connected together to form an integral reinforcement structure. This connection method greatly enhances the structural strength between the latch installation area and the C-pillar, effectively transferring the stress generated during the opening and closing of the door, making the entire vehicle body structure more stable in the latch installation area, and improving the vehicle's safety performance and reliability.

[0060] Specifically, the first welding surface 113 enhances the connection strength between the reinforcing body 11 and the C-pillar reinforcing plate 4 in the direction inward and outward of the vehicle body; the second welding surface 114 is located on the side of the reinforcing body 11 that connects to the second extension plate 13, therefore, the provision of the second welding surface 114 increases the connection strength between the reinforcing body 11 and the C-pillar reinforcing plate 4 in the front-rear direction of the vehicle body, or in other words, improves the connection strength in the direction perpendicular to the side of the reinforcing body 11. The provision of the third welding surface 131 increases the connection strength between the second extension plate 13 and the C-pillar reinforcing plate 4. The second extension plate 13 extends towards the edge of the door, therefore, it is subjected to greater force during the opening and closing of the door. The provision of the third welding surface 131 can specifically enhance the connection strength at this point.

[0061] Overall, through the synergistic effect of the three welded surfaces, a stable connection system is formed between the latch reinforcement plate 1 and the C-pillar reinforcement plate 4, which can more effectively transmit and disperse various stresses generated during the opening and closing of the door, enhance the rigidity and stability of the entire vehicle body structure in the latch installation area, and improve the vehicle's safety performance and service life.

[0062] Please see Figure 3 In some embodiments, in the extension direction of the reinforcing body 11, the first welding surface 113 extends downward from the upper end of the reinforcing body 11 through the first clearance opening 111, and the second welding surface 114 extends upward from the lower end of the reinforcing body 11 to a position not lower than the lower end of the first welding surface 113.

[0063] By reasonably setting the extension length of the first welding surface 113 and the second welding surface 114, it is ensured that there is always a welding position between the locking reinforcing plate 1 and the C-pillar reinforcing plate 4 in the extension direction of the reinforcing body 11, thereby improving the connection strength between the locking reinforcing plate 1 and the C-pillar reinforcing plate 4.

[0064] Since the second welding surface 114 extends upward from the lower end of the reinforcing body 11 to a point not lower than the lower end of the first welding surface 113, the connection strength and stability between the latch reinforcing plate 1 and the C-pillar reinforcing plate 4 at the upper and lower ends can be guaranteed. This allows the latch reinforcing plate 1 to better withstand external forces from different positions at the top and bottom, effectively disperse stress, and avoid stress concentration at a certain point due to strength differences at the connection points. This ensures the reliability and durability of the entire connection structure and improves the structural strength of the door latch and the safety performance of the vehicle.

[0065] For example, the first welding surface 113 extends downward from the upper end of the reinforcing body 11 to the upper end of the second relief opening 112, and the second welding surface 114 extends downward from the lower end of the first relief opening 111 to the lower end of the reinforcing body 11, so that the first welding surface 113 and the second welding surface 114 form an overlapping welding segment in the extending direction of the reinforcing body 11, thereby improving the connection strength.

[0066] In addition, as another specific form of connection between the locking reinforcement plate 1 and the C-pillar reinforcement plate 4, in the extension direction of the reinforcement body 11, the first welding surface 113 extends downward from the upper end of the reinforcement body 11 to the lower end of the reinforcement body 11; the second welding surface 114 extends upward from the lower end of the reinforcement body 11 to the first clearance opening 111.

[0067] By making the first welding surface 113 extend from top to bottom through both ends of the reinforcing body 11, the connection strength between the locking reinforcing plate 1 and the C-pillar reinforcing plate 4 in the extending direction of the reinforcing body 11 is ensured. In addition, the provision of the second welding surface 114, on the one hand, compensates for the insufficient connection strength at the second clearance opening 112, and on the other hand, can further enhance the connection strength between the locking reinforcing plate 1 and the C-pillar reinforcing plate 4 from another direction.

[0068] It should be noted that at the bottom of the reinforcing body 11, there is a cavity recessed towards the opening side of the U-shaped structure. The setting of this cavity structure can, on the one hand, increase the supporting surface of the bottom of the U-shape and ensure the supporting strength; on the other hand, it can facilitate the setting of connection holes so as to connect through threaded connectors and avoid mutual interference between the connection structure and the welding structure.

[0069] Similarly, since corresponding welding surfaces are also provided on the second extension plate 13 and the first extension plate 12, the above-mentioned protruding or recessed structures can also be provided on the second extension plate 13 and the first extension plate 12 to form cavities, thereby increasing the supporting surfaces of the corresponding parts and avoiding interference between the threaded connection structure and the welding structure.

[0070] Please see Figure 3 For example, the third welding surface 131 is disposed near the lower end of the second extension plate 13.

[0071] By reasonably setting the position of the third welding surface 131, the connection method between the latch reinforcement plate 1 and the C-pillar reinforcement plate 4 is further optimized to make up for the insufficient connection at the second clearance opening 112 and ensure the overall connection strength of the latch reinforcement plate 1.

[0072] For example, a locking nut plate 3 is also provided on the U-shaped inner side of the reinforcing body 11, and the locking nut plate 3 is connected to the reinforcing body 11 and the C-pillar reinforcing plate 4 respectively.

[0073] The locking nut plate 3 is used to enhance the connection strength between the reinforcing body 11 and the C-pillar reinforcing plate 4. Preferably, the locking nut plate 3 is disposed at the lower end of the reinforcing body 11 and is located on the side of the reinforcing body 11 close to the second extension plate 13, so as to compensate for the insufficient connection strength at the second relief opening 112 and increase the connection strength between the locking reinforcing plate 1 and the C-pillar reinforcing plate 4 from the opposite side of the second relief opening 112.

[0074] Please see Figure 4 In some possible embodiments, the first part 121 is provided with a fourth welding surface 1211, the second part 122 is provided with a fifth welding surface 1221, and the second extension plate 13 is provided with a sixth welding surface 132. The fourth welding surface 1211, the fifth welding surface 1221 and the sixth welding surface 132 are used to connect with the door panel 2.

[0075] By providing a fourth welding surface 1211, a fifth welding surface 1221, and a sixth welding surface 132, the connection strength between the latch reinforcement plate 1 and the door panel 2 is enhanced. These three welding surfaces provide connection points between the latch reinforcement plate 1 and the door panel 2. Through welding, the first part 121, the second part 122, and the second extension plate 13 of the latch reinforcement plate 1 are firmly connected to the door panel 2, forming a unified structure. This enhances the structural strength of the latch area, effectively disperses the stress generated near the latch mounting hole 211 during door opening and closing, reduces the risk of deformation in this area, and improves the stability of the latch mounting structure.

[0076] Specifically, the fourth welding surface 1211 is located on the first part 121 and above the latch mounting hole 211, increasing the connection strength between the area above the latch mounting hole 211 and the door panel 2; the fifth welding surface 1221 is located on the second part 122 and below the latch mounting hole 211, increasing the connection strength between the area below the latch mounting hole 211 and the door panel 2; and the combined arrangement of the fourth welding surface 1211 and the fifth welding surface 1221 can ensure the connection strength of the reinforcing body 11 near the window side; the sixth welding surface 132 is provided on the second extension plate 13 and is located on the other side of the reinforcing body 11, thus ensuring the connection strength of the reinforcing body 11 near the edge of the door panel.

[0077] Please see Figure 4 In some embodiments, in the extending direction of the reinforcing body 11, the portion of the second extension plate 13 that connects to the C-pillar reinforcing plate 4 is vertically offset from the sixth welding surface 132.

[0078] By staggering the welding position of the C-pillar reinforcing plate 4 with the sixth welding surface 132, the problem of affecting the welding connection strength when the two welding positions overlap is avoided, thus ensuring the welding quality.

[0079] The staggered arrangement of the welding positions serves two purposes. First, it avoids stress concentration at the connection points, allowing stress to be transmitted and dispersed more evenly among the latch reinforcement plate 1, door panel 2, and C-pillar reinforcement plate 4. Second, it prevents the problem of solder remelting and regeneration that occurs when welding the same area sequentially, thus ensuring welding quality.

[0080] Therefore, the staggered connection method reduces the risk of structural deformation or damage caused by unreasonable connection parts, further improves the overall reliability and durability of the latch installation structure, ensures that the structure at the door latch can withstand greater forces, and enhances the vehicle's safety performance.

[0081] Optionally, in addition to the aforementioned improvements to the structure of the locking reinforcement plate 1, the materials and manufacturing process of the locking reinforcement plate 1 can also be adjusted. Specifically, high-strength materials, such as aluminum alloy or carbon fiber composite materials, can be used to prepare the locking reinforcement plate 1 to enhance its durability and corrosion resistance, and extend its service life. It should be noted that the manufacturing cost of these high-strength materials may be high, thus they are suitable for high-performance vehicles with high cost budgets. In terms of manufacturing process, other precision machining technologies, such as laser cutting or CNC machining, can be used, but it is necessary to ensure that they can achieve the required precision and performance requirements. Conventional processes can also be selected. Therefore, the specific processing method and material selection of the locking reinforcement plate 1 can be selectively set according to actual needs.

[0082] Please see Figure 1 , Figure 5 and Figure 6 Based on the same inventive concept, this application also provides a latch installation structure, including a door panel 2, a C-pillar reinforcing plate 4, and the aforementioned latch reinforcing plate 1; the door panel 2 has a latch installation hole 211 that runs through the interior and exterior of the vehicle body; the C-pillar reinforcing plate 4 is connected to the inner side of the door panel 2, and a hollow placement space is formed between the C-pillar reinforcing plate 4 and the door panel 2; the aforementioned latch reinforcing plate 1 is disposed within the placement space; the reinforcing body 11 is connected to the C-pillar reinforcing plate 4, and the first extension plate 12 and the second extension plate 13 are correspondingly connected to the door panel 2.

[0083] Specifically, when the latch reinforcement plate 1 is connected to the C-pillar reinforcement plate 4 and the door panel 2, the latch reinforcement plate 1 is welded and fixed to the C-pillar reinforcement plate 4 through the first welding surface 113, the second welding surface 114 and the third welding surface 131; the latch reinforcement plate 1 is welded and fixed to the door panel 2 through the fourth welding surface 1211, the fifth welding surface 1221 and the sixth welding surface 132.

[0084] It should be noted that a locking nut plate 3 is also provided on the U-shaped inner side of the locking reinforcement plate 1. The locking nut plate 3 is connected to the reinforcing body 11 and the C-pillar reinforcement plate 4 respectively, and is used to enhance the connection strength between the locking reinforcement plate 1 and the C-pillar reinforcement plate 4.

[0085] It is important to understand that the tight connection and cooperation between the latch reinforcement plate 1, the C-pillar reinforcement plate 4, and the door panel 2 effectively disperses the stress generated during door opening and closing, significantly improving the structural strength and stability of the latch installation area, reducing the possibility of latch loosening and failure, and enhancing vehicle safety and reliability. Compared to the single reinforcement plate structure in existing technologies, this latch installation structure can better adapt to the forces exerted by frequent door opening and closing, effectively solving the problem of deformation and damage that traditional reinforcement structures are prone to during long-term use, and providing a more reliable guarantee for safe vehicle operation.

[0086] Therefore, the latch installation structure provided in this application embodiment, due to including the aforementioned latch reinforcement plate 1, possesses all the beneficial effects of the aforementioned latch reinforcement plate 1. It can enhance the connection and support strength at the latch connection point to adapt to the forces exerted by frequent opening and closing of the vehicle door, ensuring the vehicle's safety performance and service life. Specifically, during vehicle operation, the robust reinforcement structure provided in this application can better ensure that the door latch will not loosen or fail, thereby maintaining the door's closed state, preventing accidental opening, ensuring the safety of occupants, and reducing the probability of danger caused by accidental opening of the door.

[0087] Based on the same inventive concept, embodiments of this application also provide a vehicle including a locking mounting structure.

[0088] The vehicle provided in this application embodiment has all the beneficial effects of the above-mentioned latch installation structure because it includes the latch installation structure described above. It can enhance the connection and support strength of the latch connection to adapt to the force of frequent opening and closing of the door, ensure the safety performance and service life of the vehicle, and reduce the risk of the rear door being accidentally opened during driving.

[0089] This application optimizes the latch installation structure to improve the overall quality and reliability of the vehicle, providing users with safer and more reliable travel protection, meeting the safety and durability requirements of modern vehicles. The above description is merely a preferred embodiment of this application and is not intended to limit the application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A locking reinforcing plate, characterized in that, include: The reinforcing body (11) has a U-shaped structure with an opening on one side; a first clearance opening (111) is provided on one of the U-shaped sides of the reinforcing body (11), which is used to correspond to the latch mounting hole (211) on the door panel (2); both ends of the reinforcing body (11) extend along the edge of the door panel (2) and extend through the upper and lower ends of the latch mounting hole (211); A first extension plate (12) is disposed on one of the U-shaped sides of the reinforcing body (11); the first extension plate (12) is penetrated by the first clearance opening (111) to form a first part (121) and a second part (122) respectively disposed at the upper and lower ends of the latch mounting hole (211); and The second extension plate (13) is provided on another U-shaped side of the reinforcing body (11), and its two ends extend up and down with the reinforcing body (11); The reinforcing body (11), the first extension plate (12), and the second extension plate (13) form a zigzag structure with an opening facing outwards from the vehicle body.

2. The locking reinforcement plate as described in claim 1, characterized in that, The second extension plate (13) extends downward to the bottom of the cavity of the door panel (2), the lower end of the reinforcing body (11) extends downward through the second extension plate (13), and the lower end of the extension of the reinforcing body (11) is also provided with a second clearance opening (112); wherein, the second clearance opening (112) is spaced apart from the first clearance opening (111), and the second part (122) is placed between the first clearance opening (111) and the second clearance opening (112).

3. The locking reinforcement plate as described in claim 2, characterized in that, The upper end of the reinforcing body (11) extends upward to be flush with the bottom of the window of the door panel (2), and the length of the first part (121) is greater than the length of the second part (122).

4. The locking reinforcement plate as described in claim 1, characterized in that, The U-shaped bottom of the reinforcing body (11) has a first welding surface (113), and the side of the reinforcing body (11) connected to the second extension plate (13) has a second welding surface (114), and the side of the second extension plate (13) facing the inside of the vehicle body has a third welding surface (131); the first welding surface (113), the second welding surface (114) and the third welding surface (131) are used to connect with the C-pillar reinforcing plate (4).

5. The locking reinforcement plate as described in claim 4, characterized in that, In the extending direction of the reinforcing body (11), the first welding surface (113) extends downward from the upper end of the reinforcing body (11) through the first relief opening (111), and the second welding surface (114) extends upward from the lower end of the reinforcing body (11) to a position not lower than the lower end of the first welding surface (113).

6. The locking reinforcement plate as described in claim 4 or 5, characterized in that, The third welding surface (131) is located near the lower end of the second extension plate (13).

7. The locking reinforcement plate as described in claim 1, characterized in that, The first part (121) is provided with a fourth welding surface (1211), the second part (122) is provided with a fifth welding surface (1221), and the second extension plate (13) is provided with a sixth welding surface (132). The fourth welding surface (1211), the fifth welding surface (1221) and the sixth welding surface (132) are used to connect with the door panel (2).

8. The locking reinforcement plate as described in claim 7, characterized in that, In the extending direction of the reinforcing body (11), the portion of the second extension plate (13) connected to the C-pillar reinforcing plate (4) is vertically offset from the sixth welding surface (132).

9. A locking installation structure, characterized in that, include: The door panel (2) has a latch mounting hole (211) that runs through the inside and outside of the vehicle body; The C-pillar reinforcement plate (4) is connected to the inner side of the door panel (2) and forms a hollow mounting space between itself and the door panel (2); and The latch reinforcement plate (1) as described in any one of claims 1-8 is disposed in the placement space; the reinforcement body (11) is connected to the C-pillar reinforcement plate (4), and the first extension plate (12) and the second extension plate (13) are correspondingly connected to the door panel (2).

10. A vehicle, characterized in that, Includes the locking mounting structure as described in claim 9.

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