A sealing structure for four doors of a vehicle and the vehicle

Abstract

This invention discloses a sealing structure for four vehicle doors and a vehicle in the field of automotive parts assembly, positioning, and testing technology. It includes a front door inner water cutter, a rear door inner water cutter, a front door inner panel, and a rear door inner panel. Each inner panel has a limiting groove. The upper ends of both the front and rear inner panels have stop edges. The rear door inner water cutter is connected to the rear door inner panel. The front door inner water cutter is connected to the front door inner panel. An overlap portion is provided at the junction of the stop edge of the front door inner panel and the triangular window sealing strip. A space is provided between the overlap portion and the stop edge of the front door inner panel to accommodate the straight section of the front door inner water cutter. Each inner water cutter includes a connecting corner portion and a straight section. The straight section is installed on the stop edge of the corresponding inner panel. The corner portion is installed in the limiting groove of the corresponding inner panel. A groove is provided on the stop edge of each inner panel. A positioning boss is provided on the front and rear door inner water cutters. The positioning boss is connected to the corresponding groove. This improves the installation accuracy of the front and rear door inner water cutters.

Description

Technical Field

[0001] This invention relates to the field of vehicle component technology, and in particular to a sealing structure for four doors of a vehicle and the vehicle itself. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the requirements for the appearance of cars are becoming more and more youthful. The novel frameless door structure has become the focus of many car companies. As an important sealing accessory on the door, the installation accuracy of the inner water cutter and the triangular window sealing strip greatly affects the appearance quality and sealing performance of the whole vehicle. How to reduce the assembly burden and time of workers, and quickly identify problems such as incorrect assembly and improper assembly are still aspects that major OEMs urgently need to improve.

[0003] In related technologies, the installation method of the inner water cutter is as follows: insert the inner water cutter from one end of the car door, and then press the inner water cutter against the other end of the car door. This installation structure is simple in design and convenient to operate.

[0004] However, when installing the internal water cutter in related technologies, the positioning of the end depends entirely on the operator's visual inspection and feeling. This often results in problems such as excessive gaps at the joints of the ends and incomplete installation. This leads to obvious gaps when matching the window frame with the vehicle frame and uneven straight sections in appearance. In severe cases, it can cause problems such as rain leakage and excessive wind noise. Summary of the Invention

[0005] In view of this, embodiments of this application provide a sealing structure for four doors of a vehicle and a vehicle, which can position and indicate the installation of the water cutter inside the door.

[0006] On one hand, this application provides a sealing structure for four doors of a vehicle, the structure including a front door inner water cutter, a rear door inner water cutter, a front door inner panel and a rear door inner panel; both the front door inner panel and the rear door inner panel are provided with limiting grooves; the upper ends of both the front door inner panel and the rear door inner panel are stop edges; the front door inner water cutter is connected to the front door inner panel; the rear door inner water cutter is connected to the rear door inner panel;

[0007] Both the front door inner water cutter and the rear door inner water cutter include a connecting corner section and a straight section; the straight section is installed on the stop edge of the corresponding inner door panel; the corner section is installed in the limiting groove of the corresponding inner door panel.

[0008] An overlap is provided at the junction of the front door inner panel's stop edge and the triangular window sealing strip; a space is provided between the overlap and the front door inner panel's stop edge to accommodate the straight section of the front door's inner water-cutting section;

[0009] A groove is provided on the stop edge of each inner door panel; a positioning boss is provided on the inner water cutter of the front door and the inner water cutter of the rear door; the positioning boss is connected to the corresponding groove.

[0010] Optionally, the front door inner water cutter includes a first corner section and a front door straight section connected together; the front door straight section is installed on the stop edge of the front door inner panel; a first limiting groove is provided at one end of the front door inner panel near the B-pillar, and the first corner section is installed in the first limiting groove.

[0011] Optionally, the rear door inner water cutter includes a second corner portion, a third corner portion, and a rear door straight section portion; the second corner portion and the third corner portion are disposed at both ends of the rear door straight section portion; the rear door straight section portion is installed on the stop edge of the rear door inner panel; a second limiting groove is provided at the end of the rear door inner panel near the B-pillar; a third limiting groove is provided at the end of the rear door inner panel near the C-pillar; the second corner portion and the third corner portion are correspondingly installed in the second limiting groove and the third limiting groove.

[0012] Optionally, a positioning ridge line is provided on the overlapping part. The positioning ridge line is set horizontally and is flush with the stop edge of the inner panel of the front door.

[0013] Optionally, indicator arrows are provided on the front door interior water cutter and the rear door interior water cutter respectively; the indicator arrows indicate the installation direction of the front door interior water cutter and the rear door interior water cutter.

[0014] Optionally, marking lines are provided on both the front door inner panel and the rear door inner panel to indicate whether the front door inner water cutter and the rear door inner water cutter are installed in the correct lateral and longitudinal directions.

[0015] Optionally, the marking line includes a first scale line, which includes a first horizontal line and a first vertical line; the first horizontal line is used to indicate whether the vertical section of the straight part of the front door water cutter is installed in place.

[0016] The first longitudinal line is used to indicate whether the straight section of the front door's inner water cutter is installed in the correct lateral position.

[0017] Optionally, the marking lines include corner scale lines and corner edges; the corner edges are located at the intersection of the corner section and the straight section; the corner scale lines are located on the inner panel of each door, and the corner scale lines include a horizontal corner line and a vertical corner line; the horizontal corner line is used to indicate whether the vertical direction of the inner water cutter corner section is installed in place; the vertical corner line is used to align with the corner edge to indicate that the horizontal direction of the corner section is installed in place.

[0018] Optionally, the lateral width of the longitudinal line at the corner is a set width; the longitudinal line at the corner is also used to indicate whether the positioning boss is inserted into the corresponding groove.

[0019] On the other hand, embodiments of this application provide a vehicle that includes a sealing structure for the four doors of a vehicle as described in any of the preceding claims.

[0020] The beneficial effects of the technical solutions provided in this application are:

[0021] An overlap is provided at the junction of the front door inner panel's stop edge and the triangular window sealing strip, with space between the overlap and the stop edge of the front door inner panel to accommodate the straight section of the front door inner water cutter. This provides sufficient space for the installation of the front door inner water cutter, solving the problem of insufficient installation space preventing proper installation. A corner joint is provided on the inner water cutter, and a limiting groove is provided on the inner door panel; the cooperation of the corner joint and the limiting groove limits the lateral movement of the inner water cutter. A positioning boss is provided on the inner water cutter, and a groove is provided on the stop edge of the inner door panel; the cooperation of the positioning boss and the groove allows the operator to quickly identify the installation position of the inner water cutter and further position it laterally, thus ensuring the installation accuracy of the inner water cutter. Furthermore, this application also uses various marking lines to indicate whether the inner water cutter is installed correctly longitudinally and laterally, judging the installation quality, improving the installation quality of the inner water cutter, and avoiding problems such as incorrect installation, omissions, and incomplete assembly. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0023] Figure 1 This is a schematic diagram of the structure of the car door and the inner water cutter to be assembled according to an embodiment of this application;

[0024] Figure 2 This is a partial schematic diagram of the door structure at the A-pillar position provided in an embodiment of this application;

[0025] Figure 3 This is a partial schematic diagram of the door and inner water cutter at the B-pillar position provided in an embodiment of this application;

[0026] Figure 4 This is a partial schematic diagram of the marker line and positioning structure at the B-pillar location provided in the embodiments of this application;

[0027] Figure 5 This is a partial schematic diagram of the door and inner water cutter at the C-pillar position provided in an embodiment of this application;

[0028] Figure 6 These are the AA sectional view and the assembled sectional view provided in the embodiments of this application.

[0029] Wherein: 1-Triangular window sealing strip; 2-Front door inner water cutter; 3-Rear door inner water cutter; 4-Front door inner panel; 5-Rear door inner panel; 11-Overlapping part; 12-First corner part; 13-Second corner part; 14-Third corner part; 16-Front door straight section; 17-Rear door straight section; 21-Positioning edge; 22-First corner edge; 23-Second corner edge; 24-Third corner edge; 25-First indicator arrow; 26-Second indicator arrow; 31-Stop edge of front door inner panel; 32-Stop edge of rear door inner panel; 33-First U-shaped groove; 34-Second U-shaped groove; 35-Third U-shaped groove; 39-First groove; 40-Second groove; 101-First scale line; 102-Second scale line; 103-Third scale line; 104-Fourth scale line; 105-Positioning boss.

[0030] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Before providing a further detailed description of the embodiments of this application, the directional terms used in the embodiments of this application, based on the directions shown in the figures, are merely used to clearly describe a sealing structure of a vehicle's four doors in an embodiment of this application, and do not have the meaning of limiting the scope of protection of this application.

[0033] In this invention, the X, Y, and Z axes represent the mounting direction of the inner water cutter on the vehicle, that is, the up-down (vertical), left-right, front-back, and rear-back positions. The X-axis represents the left-right direction of the inner water cutter, and the arrow direction of the X-axis is the positive direction of the view. Taking the vehicle body as an example, it indicates the direction towards the rear, and vice versa, it indicates the direction towards the front of the vehicle body. The Y-axis represents the front-back direction of the inner water cutter, and the arrow direction of the Y-axis is the positive direction of the view. Taking the vehicle body as an example, it indicates the direction towards the outside of the vehicle, and vice versa, it indicates the direction towards the inside of the vehicle body. The Z-axis represents the up-down (vertical) direction of the inner water cutter, and the arrow direction of the Z-axis is the positive direction of the view. Taking the vehicle body as an example, it indicates the direction towards the upper side of the vehicle, and vice versa, it indicates the direction towards the lower side of the vehicle body. At the same time, it should be noted that the aforementioned representations of the X, Y, and Z axes are only for the convenience of describing this invention 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 invention.

[0034] In the description of this invention, the terms "first," "second," and "third," etc., used in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0035] With the rapid development of the new energy vehicle industry, the requirements for the appearance of cars are becoming more and more youthful. The novel frameless door structure has become the focus of many car companies. As an important sealing accessory on the door, the installation accuracy of the inner water cutter and the triangular window sealing strip greatly affects the appearance quality and sealing performance of the whole vehicle. How to reduce the assembly burden and time of workers, and quickly identify problems such as incorrect assembly and improper assembly are still aspects that major OEMs urgently need to improve.

[0036] Traditional sealing strips are often installed in car door stops using an n-type insertion structure. This means that one end of the inner water-cutting strip (B-pillar / C-pillar end) serves as the positioning reference, and the strip is inserted along the B-pillar / C-pillar end of the sheet metal stop. Then, force is applied gradually to press the sheet metal stop into the inner water-cutting groove. This installation structure is simple and convenient, but the positioning of the ends relies entirely on the operator's visual inspection and intuition. This often results in excessive gaps at the joints and incomplete installation, leading to noticeable gaps between the strip and the window frame, and uneven straight sections. In severe cases, this can cause water leakage during rain and excessive wind noise.

[0037] While some existing improved installation structures have added positioning functions, they are all designed to limit the movement of the internal water cutter on the stop to solve the problem of lack of positioning in assembly. However, the complexity of this structural design significantly increases assembly time and still does not help operators solve the problem of how to quickly position and identify whether the assembly is in place.

[0038] To address the lack of a clear positioning structure and rapid identification function in existing assembly technologies, this application provides a sealing structure for four vehicle doors and a vehicle; this structure is applied to the installation of the internal water cutter, but is not limited to the installation of the internal water cutter.

[0039] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0040] Combination Figures 1-6 As shown in the embodiment of this application, a sealing structure for four vehicle doors is provided. The structure includes a front door inner water cutter 2, a rear door inner water cutter 3, a front door inner panel 4, and a rear door inner panel 5. Limiting grooves are provided on both the front door inner panel 4 and the rear door inner panel 5. The upper ends of both the front door inner panel 4 and the rear door inner panel 5 are stop edges. The front door inner water cutter 2 is connected to the front door inner panel 4. The rear door inner water cutter 3 is connected to the rear door inner panel 5.

[0041] Both the front door inner water cutter 2 and the rear door inner water cutter 3 include a connecting corner section and a straight section; the straight section is installed on the stop edge of the corresponding inner door panel; the corner section is installed in the limiting groove of the corresponding inner door panel.

[0042] An overlap portion 11 is provided at the junction of the stop edge 31 of the inner front door panel and the triangular window sealing strip 1; a space is provided between the overlap portion 11 and the stop edge 31 of the inner front door panel to accommodate the straight section of the inner front door water cut.

[0043] A groove is provided on the stop edge of each inner panel of the door; a positioning boss is provided on the inner water cutter 2 of the front door and the inner water cutter 3 of the rear door; the positioning boss is connected to the corresponding groove.

[0044] In addition, this embodiment also provides marking lines on both the front door inner panel 4 and the rear door inner panel 5. The marking lines are used to indicate whether the front door inner water cutter 2 and the rear door inner water cutter 3 are installed in the correct horizontal and vertical directions.

[0045] By providing an overlap at the junction of the front door inner panel's stop edge and the triangular window sealing strip, and creating space between the overlap and the stop edge of the front door inner panel to accommodate the straight section of the front door inner water cutter, sufficient space is provided for the installation of the front door inner water cutter, solving the problem of insufficient installation space preventing proper installation. A corner joint is provided on the inner water cutter, and a limiting groove is provided on the door inner panel; the cooperation of the corner joint and the limiting groove limits the lateral movement of the inner water cutter. A positioning boss is provided on the inner water cutter, and a groove is provided on the stop edge of the door inner panel; the cooperation of the positioning boss and the groove allows the operator to quickly identify the installation position of the inner water cutter, and further positions the inner water cutter laterally by cooperating with the corner joint and the limiting groove, thus ensuring the installation accuracy of the inner water cutter.

[0046] In this embodiment, marking lines are also provided on both the front door inner panel 4 and the rear door inner panel 5. These marking lines are used to indicate whether the front door inner water cutter 2 and the rear door inner water cutter 3 are installed correctly in the horizontal and vertical directions. By setting various marking lines to indicate whether the inner water cutters are installed correctly in the vertical and horizontal directions, the installation quality and whether the dimensions of each inner water cutter match the door inner panel can be judged, thereby improving the installation quality of the inner water cutters and avoiding problems such as incorrect installation, omissions, and improper assembly.

[0047] The marking line includes a first scale line 101, which includes a first horizontal line and a first vertical line; the first horizontal line is used to indicate whether the vertical section of the straight part of the front door inner water cutter 2 is installed in place.

[0048] The first longitudinal line is used to indicate whether the straight section of the front door inner water cutter 2 is installed in place laterally.

[0049] The marking lines also include corner scale lines and corner edges; the corner edges are set at the intersection of the corner and the straight section; the corner scale lines are set on the inner panel of each door, and the corner scale lines include a horizontal corner line and a vertical corner line; the horizontal corner line is used to indicate whether the vertical corner of the inner water cutter is installed in place; the vertical corner line is used to align with the corner edge to indicate that the horizontal corner is installed in place.

[0050] The horizontal width of the longitudinal line at the corner is the set width; the longitudinal line at the corner is also used to indicate whether the positioning boss is inserted into the corresponding groove.

[0051] Indicator arrows are also provided on the front door inner water cutter 2 and the rear door inner water cutter 3 respectively; the indicator arrows indicate the installation direction of the front door inner water cutter 2 and the rear door inner water cutter 3.

[0052] The following is combined Figures 1-6 The various components and functions of the structure provided in this embodiment will be described in more detail.

[0053] like Figure 1As shown, before the front door inner water cutter 2 and the rear door inner water cutter 3 are assembled, the triangular sealing strip 1 is already in the assembled state with the front door inner water cutter 2. The front door inner water cutter 2 and the rear door inner water cutter 3 are installed with the B-pillar end as the positioning reference. Taking the assembly operation of the front door inner water cutter 2 as an example, the first corner part 12 of the front door inner water cutter 2 is pressed down, and then pressed down along the straight section 16 of the front door towards the front side of the vehicle body to complete the assembly.

[0054] like Figure 2 As shown, the triangular window sealing strip 1 is assembled on the guide rail along the Z-direction and cooperates with the front door inner panel 4, wrapping around the guide rail to reveal... Figure 2 The state shown is as follows: An overlap portion 11 is provided at the junction of the triangular window sealing strip 1 and the stop edge 31 of the front door inner panel. The overlap portion 11 is a bent component, and the bent overlap portion is overturned onto the stop edge 31 of the front door inner panel. The Z-direction flange of the overlap portion 11 extends above the upper end of the stop edge 31 of the front door inner panel. A space is provided between the overlap portion 11 and the upper end of the stop edge 31 of the front door inner panel to accommodate the straight section of the front door inner water-cutting section. The height of this space can be 2.5mm. A positioning ridge 21 is set on the upper part, which is set horizontally and flush with the stop edge 31 of the front door inner panel. When the positioning ridge 21 is flush with the stop edge 31 of the front door inner panel, it means that the overlapping part 11 is installed in place. This prevents the space between the overlapping part 11 and the stop edge 31 of the front door inner panel from being too small, resulting in over-pressure assembly of the overlapping part 11, which would lead to loss of matching space with the front door inner water cutter 2 and make the front door inner water cutter 2 difficult to assemble in the subsequent installation process.

[0055] like Figure 3 As shown, the front door inner water cutter 2 includes a first corner section 12 and a front door straight section 16 connected to each other; the front door straight section 16 is installed on the stop edge 31 of the front door inner panel; a first limiting groove is provided at one end of the front door inner panel 4 near the B pillar, and the first corner section 12 is installed in the first limiting groove.

[0056] The first scale line 101 is located on the stop edge 31 of the inner front door panel. The first limiting groove can be a first U-shaped groove 33. The inner front door water cutter 2 uses the first U-shaped groove 33 at the B-pillar end as the mating surface, and the first corner part 12 is vertically inserted downward into the first U-shaped groove 33. Figure 2As shown, the front door inner water cutter 2 includes a front door straight section 16 and a first corner section 12. The first corner section 12 is located at the B-pillar end of the front door and connects to the front door straight section 16. The front door straight section 16 extends along the stop edge 31 of the front door inner panel towards the front of the vehicle body, reaching a distance of 3mm from the overlap, which is the standard assembly position. The first scale line 101 is set at a distance of 6mm from the overlap 11 in the X direction gap. The gap setting is the first indicator for detecting the length quality of the parts and the appearance quality of the product. The 6mm gap is determined by accumulating the comprehensive tolerance (including the length tolerance and assembly tolerance of the front door water cutter) at the A-pillar position after positioning at the B-pillar. After the front door inner water cutter 2 is assembled, the lower edge of its front door straight section 16 should cover the first scale line 101. A horizontal line, that is, when it covers the first scale line 101 in the Z direction, indicates that the longitudinal installation of the front door straight section 16 is in place; otherwise, it is considered that it is not pressed in place and needs to be pressed again until the front door straight section 16 covers the first scale line 101 in the Z direction. The second detection function of the first scale line 101 is to determine whether the length of the front door inner water cut 2 is out of tolerance. The identification method is as follows: after installation, visually check whether the front end of the front door straight section 16 covers the first vertical line of the first scale line 101. That is, when it covers the first scale line 101 in the X direction, it indicates that the horizontal installation of the front door straight section 16 is in place; otherwise, it is considered that it is not assembled in place or the length dimension of the front door inner cut is not qualified. If the first scale line 101 can still be seen after absorbing the tolerance in the Z direction, the front door inner cut needs to be redone.

[0057] A first groove 39 is provided on the stop edge of the inner side of the front door, and a positioning boss 105 is provided on the inner water cutter 2 of the front door. The intersection of the first corner portion 12 and the straight section portion 16 of the front door is the first corner edge 22. The first corner portion 12 is an injection molded part, and the straight section portion is an extruded part. The first corner edge 22 at the intersection of the two can serve as the external positioning line of the inner water cutter of the front door. The corner scale line used to align with the first corner edge 22 is the second scale line 102. A first indicator arrow 25 is provided on the inner water cutter 2 of the front door. The first indicator arrow 25 is set vertically downward along the Z direction on the protrusion of the first corner portion 12, facing the inside of the vehicle, and it points to the first groove 39. A partial cross-sectional view of the first indicator arrow 25 is shown below. Figure 6As shown, a positioning boss 105 is provided on the inner side of the first corner portion 12. It is foreseeable that during assembly, the first corner portion 12 is installed downwards along the direction of the first indicator arrow 25, and the positioning boss 105 is inserted into the first U-shaped groove 33. The Z-axis alignment of the first corner edge 22 and the second scale line 102 can also be used to assist in installation, as the first corner edge 22 and the second scale line 102 are aligned in the Z-axis. Therefore, after the operation is completed, a self-test can be used to identify whether the positioning boss 105 is inserted into the first U-shaped groove 33. Since the fit tolerance between the first U-shaped groove 33 and the positioning boss 105 is 2mm, the second scale line 102 is provided. The lateral width of the longitudinal line at the corner of 2 is 2mm. When assembling the front door inner water cutter, the Z direction of the first corner edge 22 coincides with the longitudinal line at the corner of the second scale line 102. That is, the first corner edge 22 in the X direction does not exceed the width range of the longitudinal line at the corner of the second scale line 102. It can be regarded as the first corner part of the front door inner water cutter is laterally assembled in place. The lower edge of the first corner edge 23 covers the lateral line at the corner of the second scale line 102, indicating that the longitudinal installation of the first corner part is in place. Otherwise, it is considered that the assembly is improper and needs to be reassembled. Since this is the positioning reference, the quality of the corner installation at the B-pillar end greatly affects the installation of the entire inner water cutter.

[0058] like Figures 3-5 As shown, the rear door inner water cutter includes a second corner portion 13, a third corner portion 14, and a rear door straight section portion 17; the second corner portion 13 and the third corner portion 14 are disposed at both ends of the rear door straight section portion 17; the rear door straight section portion 17 is installed on the stop edge 32 of the rear door inner panel; a second limiting groove is provided at the end of the rear door inner panel 5 near the B pillar; a third limiting groove is provided at the end of the rear door inner panel near the C pillar; the second corner portion 13 and the third corner portion 14 are respectively installed in the second limiting groove and the third limiting groove.

[0059] The second limiting groove adopts a second U-shaped groove 34; the third limiting groove adopts a third U-shaped groove 35. The connection between the second corner portion 13 and the straight section portion 17 of the rear door is the second corner edge 23; the connection between the third corner portion 14 and the straight section portion 17 of the rear door is the third corner edge 24. The corner scale line used to align with the second corner edge 23 is the third scale line 103, and the corner scale line used to align with the third corner edge 24 is the fourth scale line 104; both the third scale line 103 and the fourth scale line 104 are set on the stop edge of the inner panel of the rear door.

[0060] A second groove 40 is provided on the stop edge 32 of the rear door inner panel, and a positioning boss 105 is provided on the straight section 17 of the rear door; a second indicator arrow 26 is engraved on the inner side of the second corner portion 13, which points to the second groove 40 arranged on the stop edge 32 of the rear door inner panel in the same Z direction; a third scale line 103 is provided on the right side of the second groove 40, which is vertically aligned with the second corner edge 23. Thus, the second corner edge 23, the second indicator arrow 26, the second groove 40 and the third scale line 103 form the positioning mechanism of the rear door B pillar.

[0061] The stop edge 32 of the rear door inner panel at the C-pillar end is provided with a fourth scale line 104. The fourth scale line 104 and the third corner edge 24 are on the same YZ plane. The fourth scale line 104 and the third scale line 103 together form the detection mechanism at the rear door end.

[0062] When installing the rear door inner water cutter 3, press the second corner part 13 downwards along the direction of the second indicator arrow 26, and insert the positioning boss 105 on the rear door inner water cutter 3 into the second U-shaped groove 34. Installation can also be aided by aligning the longitudinal line (Z-direction) at the corner of the second corner edge 23 and the third scale line 102. When the lower edge of the second corner edge 23 covers the transverse line at the corner of the third scale line 103, it indicates that the second corner part 13 is longitudinally installed correctly; when the second corner edge 23 and the longitudinal line at the corner of the third scale line 103 are aligned in the Z-direction, it indicates that the second corner part 13 is transversely installed correctly. Therefore, after the operation is completed, a self-check can be used to identify whether the positioning boss 105 is in the groove. Figure 6 As shown, the specific method for judging assembly quality needs to be explained in conjunction with the C-pillar end. When the lower edge of the third corner edge 24 covers the horizontal line at the corner of the fourth scale line 104, it indicates that the third corner part 13 is installed in the longitudinal direction; when the third corner edge 24 and the vertical line at the corner of the fourth scale line 104 are aligned in the Z direction, it indicates that the third corner part 14 is installed in the transverse direction.

[0063] The lateral width of the longitudinal line at the corner of the third scale line 103 and the fourth scale line 104 is 2mm, which is determined based on the processing error and assembly error of the rear door inner water cutter.

[0064] After the second corner joint 13 is installed, visually inspect the second corner joint 23 and its lower edge to see if they are within the width range of the third scale line 103 (vertical and horizontal lines). If the second corner joint 23 and its lower edge are not within the width range of the third scale line 103, the assembly needs to be readjusted. After the second corner joint 13 and the third corner joint 14 are installed, visually inspect whether the third corner joint 24 is within the width range of the fourth scale line 104. Specifically, in conjunction with the assembly of the second corner joint 13, if a complete vertical scale line can be seen on either side, it is considered an unqualified assembly and needs to be reassembled. If the second corner joint 13 is in a qualified assembly state, and the third corner joint 24 is seriously out of tolerance, it is considered that the back door waterproofing is unqualified.

[0065] This application provides a sealing structure for four vehicle doors. By setting an overlap portion, the longitudinal installation space of the front door inner water cutter 2 is restricted; by using the cooperation of the corner portion and the limiting groove, and the cooperation of the positioning boss and the groove, the lateral installation of the front door inner water cutter and the rear door inner water cutter is positioned and restricted; by setting various marking lines, the most intuitive judgment is provided as to whether the front door inner water cutter and the rear door inner water cutter are installed in place or qualified. This reduces assembly time, avoids problems such as incorrect installation, omission, and incomplete assembly, greatly reduces production costs, improves the assembly quality of the whole vehicle, brings substantial economic benefits to the company, and avoids appearance quality problems caused by traditional assembly methods. In severe cases, it can cause serious wind noise leakage in this area, and cause abnormal noise of glass lifting due to uneven assembly sections, thus causing a series of after-sales problems.

[0066] This application also provides a vehicle, which includes the sealing structure of the four doors of a vehicle as described in any of the preceding claims.

[0067] Those skilled in the art will recognize that the units and algorithm steps described in conjunction with the embodiments herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0068] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A sealing structure of four doors of a vehicle, characterized by, The front door inner water cut, the rear door inner water cut, the front door inner plate and the rear door inner plate are included. The front door inner plate and the rear door inner plate are both provided with a limiting groove; the upper end of the front door inner plate and the rear door inner plate is a stop edge; the rear door inner water cut is connected with the rear door inner plate; the front door inner water cut is connected with the front door inner plate; a lap edge part is arranged at the cooperation part of the stop edge of the front door inner plate and the triangular window sealing strip; a space for accommodating the straight section of the front door inner water cut is arranged between the lap edge part and the stop edge of the front door inner plate; The front door inner water cut and the rear door inner water cut both include a connecting corner part and a straight section; the straight section is installed on the stop edge of the corresponding door inner plate; the corner part is installed in the limiting groove of the corresponding door inner plate; a recess is arranged on the stop edge of each door inner plate; a positioning boss is arranged on the front door inner water cut and the rear door inner water cut; the positioning boss is connected with the corresponding recess; A mark line is arranged on the front door inner plate and the rear door inner plate; the mark line is used to indicate whether the front door inner water cut and the rear door inner water cut are installed in place in the horizontal direction and the vertical direction.

2. A four-door sealing structure for a vehicle according to claim 1, wherein The front door inner water cut includes a first corner part and a front door straight section; the front door straight section is installed on the stop edge of the front door inner plate; the front door inner plate is provided with a first limiting groove at the end close to the B column; the first corner part is installed in the first limiting groove.

3. A four-door sealing structure for a vehicle according to claim 1, wherein The rear door inner water cut includes a second corner part, a third corner part and a rear door straight section; the second corner part and the third corner part are arranged at the two ends of the rear door straight section; the rear door straight section is installed on the stop edge of the rear door inner plate; the rear door inner plate is provided with a second limiting groove at the end close to the B column; the rear door inner plate is provided with a third limiting groove at the end close to the C column; the second corner part and the third corner part are installed in the second limiting groove and the third limiting groove correspondingly.

4. A four-door sealing structure for a vehicle according to claim 1, wherein A positioning edge line is arranged on the lap edge part; the positioning edge line is arranged in the horizontal direction and is flush with the stop edge of the front door inner plate.

5. A four-door sealing structure for a vehicle according to claim 1, wherein An indicating arrow is arranged on the front door inner water cut and the rear door inner water cut respectively; the indicating arrow indicates the installation direction of the front door inner water cut and the rear door inner water cut.

6. A four-door sealing structure for a vehicle according to claim 1, wherein The mark line includes a first scale line; the first scale line includes a first horizontal line and a first vertical line; the first horizontal line is used to indicate whether the vertical direction of the straight section of the front door inner water cut is installed in place; The first vertical line is used to indicate whether the horizontal direction of the straight section of the front door inner water cut is installed in place.

7. A four-door sealing structure for a vehicle according to claim 1, wherein The mark line includes a corner scale line and a corner edge; the corner edge is arranged at the intersection of the corner part and the straight section; the corner scale line is arranged on each door inner plate; the corner scale line includes a corner horizontal line and a corner vertical line; the corner horizontal line is used to indicate whether the vertical direction of the corner part of the inner water cut is installed in place; the corner vertical line is used to be aligned with the corner edge to indicate that the horizontal direction of the corner part is installed in place.

8. A four-door sealing structure for a vehicle according to claim 7, wherein The horizontal width of the corner vertical line is a set width; the corner vertical line is also used to indicate whether the positioning boss is inserted into the corresponding recess.

9. A vehicle characterized by comprising: The vehicle includes a sealing structure of four doors of the vehicle according to any one of claims 1-8.

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