Outer water cutting fixing structure and vehicle

Abstract

This utility model belongs to the field of automotive parts technology, and provides an external waterstop fixing structure and a vehicle. The fixing structure includes: a body, which is inserted into the interior of the external waterstop for connection with the external waterstop; a snap-fit ​​part, which is disposed on the body for snap-fitting with the door sheet metal; and a limiting part, which is disposed on the body. Compared with the prior art, this utility model provides a limiting part on the body along the installation direction of the fixing structure to the door sheet metal. When excessive installation force is applied, the limiting part can press against the sheet metal, effectively preventing the snap-fit ​​part from sinking into the inner side of the door sheet metal. This solves the problem of the fixing structure sinking and causing the appearance surface to sag, and avoids the defect of large surface difference between the front and rear door ends.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to an external water-cutting fixing structure and a vehicle. Background Technology

[0002] In the automotive manufacturing industry, the external rain guard is an important component on the car door. Its main function is to prevent rainwater from seeping into the vehicle interior, while also serving an aesthetic purpose. The way the external rain guard is connected to the door sheet metal directly affects the vehicle's sealing performance and appearance quality.

[0003] Currently, the common connection methods between external waterstops and car door sheet metal include snap-fit, adhesive, and screw fixing. Among them, snap-fit ​​connection is widely used in automobile manufacturing due to its advantages such as convenient installation and disassembly. For example, CN118269607A discloses a concealed external waterstop installation structure, which includes a waterstop body and a connector. The connector has a first snap-fit ​​part and a second snap-fit ​​part. The first snap-fit ​​part snaps into the snap-fit ​​groove of the waterstop body, and the second snap-fit ​​part snaps into the door reinforcement plate, thus realizing the connection between the external waterstop and the car door sheet metal.

[0004] CN208576409U discloses an external water cutter fixing device. The device includes a body for connecting to the inner end of the external water cutter. The bottom of the body is provided with a snap-fit ​​structure for snapping into and being detachable from the door sheet metal structure. The external water cutter end is fixedly connected to the door sheet metal structure by connecting the body to the inner end of the external water cutter and then snapping into the door sheet metal structure by the snap-fit ​​structure.

[0005] CN220517956U discloses a connection structure between an external water cutter and a vehicle door, including a housing connected to the end of the external water cutter. The housing has a mounting cavity, in which an insert with a first snap-fit ​​portion is embedded, and a snap-fit ​​portion with a connecting portion and a second snap-fit ​​portion is attached. The connecting portion is connected to the sheet metal of the vehicle door, and the first snap-fit ​​portion snaps into the second snap-fit ​​portion. By setting the housing for sealing the external water cutter and the insert for snap-fit ​​as two parts, they can be made of different materials, while achieving good sealing and snap-fit ​​strength.

[0006] However, existing external waterstop fixing structures still have some technical problems. First, during installation, if excessive force is applied, the clips can easily sink into the inner side of the sheet metal, causing the exterior surface to sag and resulting in a large difference in the surface finish of the front and rear doors, affecting the overall aesthetics of the vehicle. Second, due to the relatively large interference between the door sheet metal and the cover plate (usually around 4mm), the product is subjected to an outward counterclockwise rotational torque, making it easy for the product's surface contour to deviate from tolerance, affecting the product's quality and service life. In addition, existing fixing structures lack effective limiting mechanisms for controlling installation depth, resulting in low installation accuracy and a tendency for incomplete or over-installation.

[0007] Therefore, there is an urgent need for an external water-cutting fixing structure that can solve the above problems, prevent the appearance surface from sinking due to the buckle falling in, overcome the problem of excessive appearance surface contour due to large interference, and at the same time, accurately control the installation depth to improve installation accuracy and product quality. Utility Model Content

[0008] In order to solve the technical problems of existing external water-cutting end caps causing the appearance surface to sink due to buckle sinking during installation and the product's profile exceeding the tolerance due to force and rotation, this utility model provides an external water-cutting fixing structure to achieve the technical effects of preventing over-installation of the end cap, solving the end cap rotation problem, and simplifying the installation process.

[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: An external water cutter fixing structure is proposed for fixing the external water cutter to the vehicle door sheet metal, the fixing structure comprising:

[0010] The main body is inserted into the interior of the external water cutter for connection with the external water cutter;

[0011] A snap-fit ​​part is provided on the main body for snapping with the door sheet metal;

[0012] A limiting part is provided on the main body; wherein,

[0013] When the fixing structure inserts the snap-fit ​​part into the door sheet metal along the installation direction, the limiting part abuts against the outer side wall of the door sheet metal to limit the depth of the snap-fit ​​part inserted into the door sheet metal.

[0014] In the aforementioned external water-cutting fixing structure, two limiting parts are provided, and the two limiting parts are located on both sides of the snap-fit ​​part.

[0015] In the aforementioned external water-cutting fixing structure, the main body is provided with a first snap-fit ​​groove on the side of the main body facing the door sheet metal along the installation direction. The first snap-fit ​​groove is provided on the side of the main body facing the door sheet metal along the installation direction and is used to snap onto both sides of the end of the door sheet metal to provide a limit for the main body in the inward and outward directions along the door sheet metal.

[0016] In the aforementioned external water-cutting fixing structure, the first snap-fit ​​groove has an inverted U-shaped cross-section along the installation direction, and a first guide slope is provided at the opening of the first snap-fit ​​groove. The first guide slope is used to allow the end of the door sheet metal to enter the first snap-fit ​​groove.

[0017] In the aforementioned external water-cutting fixing structure, the body has length, width, and height. The height direction of the body is parallel to the installation direction. The body includes a crossbeam, a longitudinal beam, and a support leg. The crossbeam, the longitudinal beam, and the support leg all extend along the length direction of the body. The crossbeam is located at the end of the longitudinal beam facing away from the door sheet metal. The support leg extends obliquely from the end of the longitudinal beam in a direction away from the door sheet metal. The external water-cutting is provided with a second locking groove and a third locking groove. The end of the longitudinal beam away from the support leg is locked in the second locking groove, and the end of the support leg away from the crossbeam is locked in the third locking groove.

[0018] In the aforementioned external water shear fixing structure, both the longitudinal beam and the support leg are provided with limiting ribs, which are used to accommodate the manufacturing tolerances of the second and third snap-fit ​​grooves on the external water shear.

[0019] In the aforementioned external water shear fixing structure, the main body is provided with a limiting hole that penetrates the crossbeam along its width direction, and the external water shear is provided with a tongue piece that engages with the limiting hole to provide a limiting position for the main body in its length direction.

[0020] In the aforementioned external water-cutting fixing structure, the side wall of the limiting hole facing the body and inserted into the external water-cutting direction is inclined, which is used to adapt the tongue piece.

[0021] In one of the aforementioned external water-cutting fixing structures, a limiting protrusion is provided at one end of the crossbeam facing the door sheet metal. The limiting protrusion movably abuts against the door sheet metal to provide a limit for the installation of the fixing structure along the width direction of the body.

[0022] The body is provided with a plurality of second guide slopes along its length direction, the second guide slopes being used to provide guidance for the insertion of the body and the external water cutter;

[0023] An end cap is provided at one end of the body along its length direction. The end cap movably abuts against the end face of the external water cutter to provide a limit for the insertion of the body. A reinforcing rib is provided between the end cap and the longitudinal beam.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) By setting a limiting part on the body along the installation direction of the fixed structure to the door sheet metal, when the installation force is too large, the limiting part can hit the sheet metal, effectively preventing the snap-fit ​​part from sinking into the inside of the door sheet metal, solving the problem of the appearance surface sinking due to the fixed structure sinking, and avoiding the defect of large surface difference between the front and rear door ends.

[0026] (2) By setting a first slot in the body and adding a limiting boss along its width direction, the external water cutter is prevented from being overloaded along the width direction of the body. The first slot uses two side walls to clamp the door sheet metal, effectively balancing the counterclockwise torque formed by the force on the door sheet metal and the fixed structure, solving the problem of fixed structure rotation, preventing water cutter flipping, and overcoming the problem that the appearance surface contour is prone to exceeding the tolerance.

[0027] (3) The present invention has a simple structure and is easy and quick to install. By setting a first guide slope and multiple second guide slopes, the end cap can be installed easily, and automated assembly can be achieved, which improves production efficiency. Attached Figure Description

[0028] Figure 1 This is a perspective view of an external water-cutting fixing structure of this utility model installed on a car door.

[0029] Figure 2 This is a perspective view of an external water-cutting fixing structure according to the present invention.

[0030] Figure 3 yes Figure 2 A view from another direction.

[0031] Figure 4 This is a plan view of an external water-cutting fixing structure according to this utility model.

[0032] Figure 5 This utility model relates to an external water-cutting fixing structure installed on the rear edge of a car door. Figure 4 Sectional view along the AA direction.

[0033] Figure 6 yes Figure 5 Isometric view.

[0034] Figure 7 This utility model relates to an external water-cutting fixing structure installed on the rear edge of a car door. Figure 4 Sectional view along the BB direction.

[0035] Figure 8 yes Figure 7 Isometric view.

[0036] Figure 9 This utility model relates to an external water-cutting fixing structure installed on the rear edge of a car door. Figure 4 A cross-sectional view along the CC direction.

[0037] Figure 10 yes Figure 9 Isometric view.

[0038] Figure 11 This utility model relates to an external water-cutting fixing structure installed on the rear edge of a car door. Figure 4Sectional view along the DD direction.

[0039] Figure 12 This is a partial view of an external water shear fixing structure of this utility model installed on an external water shear.

[0040] In the diagram, L represents length; W represents width; H represents height; 100 represents external water cutter; 110 represents tongue; 120 represents second snap-fit ​​groove; 130 represents third snap-fit ​​groove; 200 represents door sheet metal; 300 represents fixed structure; 310 represents body; 311 represents first snap-fit ​​groove; 311a represents first guide slope; 312 represents crossbeam; 313 represents limiting protrusion; 314 represents longitudinal beam; 315 represents support leg; 316 represents limiting rib; 317 represents limiting hole; 317a represents slope; 318 represents second guide slope; 320 represents snap-fit ​​part; 330 represents limiting part; 340 represents end cap; 350 represents reinforcing rib; and 400 represents installation direction. Detailed Implementation

[0041] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] like Figures 1 to 12 As shown, this utility model discloses an external water cutter fixing structure for fixing the external water cutter 100 to the vehicle door sheet metal 200. The fixing structure 300 includes a body 310, a snap-fit ​​part 320, and a limiting part 330.

[0044] The main body 310 is inserted into the outer water cutter 100 for connection with the outer water cutter 100. A snap-fit ​​portion 320 is provided on the main body 310 for snap-fitting with the door sheet metal 200. A limiting portion 330 is provided on the main body 310. When the fixing structure 300 inserts the snap-fit ​​portion 320 into the door sheet metal 200 along the installation direction 400, the limiting portion 330 abuts against the outer wall of the door sheet metal 200 to limit the depth of insertion of the snap-fit ​​portion 320 into the door sheet metal 200.

[0045] During installation, first follow... Figure 1The main body 310 is inserted into the outer water cutter 100 from right to left. After the fixing structure 300 and the outer water cutter 100 are fixed, the door sheet metal 200 has mounting holes corresponding to the snap-fit ​​part 320. Then, the outer water cutter 100, together with the fixing structure 300, is installed onto the door sheet metal 200 along the installation direction 400. During this process, the snap-fit ​​part 320 is inserted from the outside of the door sheet metal 200 through the mounting holes and extends to the inside of the door sheet metal 200 facing the passenger compartment, thereby snapping into the door sheet metal 200 and completing the connection between the fixing structure 300 and the door sheet metal 200. When the fixing structure 300 is pressed onto the door sheet metal 200 along the installation direction 400, the limiting part 330 abuts against the door sheet metal 200, providing a limiting effect for the installation of the fixing structure 300 and the door sheet metal 200, preventing the snap-fit ​​from sinking into the inside of the sheet metal due to excessive force. This design not only improves installation accuracy but also ensures the overall aesthetic appeal of the vehicle.

[0046] Furthermore, two limiting parts 330 are provided, and the two limiting parts 330 are located on both sides of the snap-fit ​​part 320. This design makes the fixing structure 300 more stable during installation, and also allows for better control of the insertion depth of the snap-fit ​​part 320 into the door sheet metal 200, preventing the connection from being weak due to excessive or shallow insertion.

[0047] It is worth mentioning that the main body 310 is provided with a first snap-fit ​​groove 311 on the side of the main body 310 along the installation direction 400 and facing the door sheet metal 200. The first snap-fit ​​groove 311 is provided on the side of the main body 310 along the installation direction 400 and facing the door sheet metal 200, and is used to snap onto both sides of the end of the door sheet metal 200 to provide a limit for the main body 310 in the inward and outward directions along the door sheet metal 200.

[0048] By setting a first slot in the body 310, the two side walls of the first slot clamp the door sheet metal 200, effectively balancing the counterclockwise torque formed by the forces on the door sheet metal 200 and the fixed structure 300, solving the rotation problem of the fixed structure 300, preventing water cutting and overturning, and overcoming the problem that the appearance surface contour is prone to exceeding the tolerance.

[0049] More specifically, the first latching groove 311 has an inverted U-shaped cross-section along the installation direction 400, and a first guide slope 311a is provided at the opening of the first latching groove 311. The first guide slope 311a is used to allow the end of the door sheet metal 200 to enter into the first latching groove 311. This design makes it easier for the door sheet metal 200 to be inserted into the first latching groove 311, improving the convenience of installation.

[0050] The body 310 has a length L, a width W, and a height H. The height H of the body 310 is parallel to the installation direction 400. The body 310 includes a crossbeam 312, a longitudinal beam 314, and a support leg 315. The crossbeam 312, the longitudinal beam 314, and the support leg 315 all extend along the length L of the body 310. The crossbeam 312 is located at the end of the longitudinal beam 314 that is away from the door sheet metal 200. The support leg 315 extends obliquely from the end of the longitudinal beam 314 in a direction away from the door sheet metal 200. The outer water cutter 100 is provided with a second locking groove 120 and a third locking groove 130. The end of the longitudinal beam 314 away from the support leg 315 is locked in the second locking groove 120, and the end of the support leg 315 away from the crossbeam 312 is locked in the third locking groove 130.

[0051] The design, through the reasonable layout and mutual cooperation of the crossbeam 312, longitudinal beam 314 and support 315, effectively utilizes the second locking groove 120 and the third locking groove 130, making the entire fixing structure 300 more compact and possessing good strength and stability, so that the body 310 can be firmly connected to the external water cutter 100.

[0052] Both the longitudinal beam 314 and the support leg 315 are provided with limiting ribs 316, which are used to accommodate the manufacturing tolerances of the second locking groove 120 and the third locking groove 130 on the outer water shear 100. This design ensures a tight fit between the various components, thereby improving the reliability of the overall structure, reducing loosening or instability caused by tolerance mismatch, and enhancing the durability of the product.

[0053] The main body 310 has a limiting hole 317 that passes through the crossbeam 312 along the width W direction of the main body 310. The outer water cutter 100 is provided with a tongue 110, which is movably engaged with the limiting hole 317 to provide a limit for the main body 310 in the length L direction.

[0054] When the body 310 along Figure 1 When the body 310 is inserted into the outer water cutter 100 from right to left, a clearance structure is provided on the body 310. This clearance structure provides clearance between the body 310 and the tongue 110, allowing the tongue 110 to enter the limiting hole 317 normally. After the body 310 is inserted into the appropriate position, the tongue 110 is engaged with the limiting hole 317 on the body 310 by riveting, which prevents the body 310 from disengaging from the outer water cutter 100 in the reverse direction of insertion.

[0055] The sidewall of the limiting hole 317 facing the body 310 and inserted into the outer water cutter 100 is a bevel 317a, which is used to fit the tongue 110. This design allows the tongue 110 and the limiting hole 317 to engage even when there are manufacturing tolerances on the tongue 110 on the outer water cutter 100.

[0056] A limiting protrusion 313 is provided at one end of the crossbeam 312 facing the door sheet metal 200. The limiting protrusion 313 abuts against the door sheet metal 200 to provide a limiting position for the installation of the fixing structure 300 along the width W direction of the body 310. Multiple second guide ramps 318 are provided along the length L direction of the body 310 to guide the insertion of the body 310 into the outer water-cutting 100. An end cap 340 is provided at one end of the body 310 along the length L direction. The end cap 340 abuts against the end face of the outer water-cutting 100 to provide a limiting position for the insertion of the body 310. A reinforcing rib 350 is provided between the end cap 340 and the longitudinal beam 314. These designs make the fixing structure 300 easier to position during installation and also enhance the overall strength of the fixing structure 300.

[0057] In practical applications, the installation process of the outer water cutter 100 fixing structure 300 is as follows: First, insert the body 310 into the outer water cutter 100, so that the end of the longitudinal beam 314 away from the support leg 315 is engaged in the second engagement groove 120 on the outer water cutter 100, and the end of the support leg 315 away from the cross beam 312 is engaged in the third engagement groove 130 on the outer water cutter 100; then, by riveting, engage the tongue 110 with the limiting hole 137 to complete the fixing between the outer water cutter 100 and the body 310; then, insert the engagement part 320 into the door sheet metal 200 along the installation direction 400, so that it engages with the door sheet metal 200 until the limiting part 330 abuts against the outer side wall of the door sheet metal 200; finally, confirm that the first engagement groove 311 has been engaged on both sides of the end of the door sheet metal 200 to complete the installation.

[0058] The external water cutter 100 fixing structure 300, through the coordinated action of the body 310, the snap-fit ​​part 320, and the limiting part 330, achieves a firm connection between the external water cutter 100 and the door sheet metal 200, while also solving the problems of inconvenient installation and unstable connection in traditional connection methods. In particular, the limiting part 330 limits the insertion depth of the snap-fit ​​part 320, avoiding the problem of weak connection caused by excessive insertion; the snap-fit ​​of the end of the door sheet metal 200 by the first snap-fit ​​groove 311 provides a limit along the inward and outward directions of the door sheet metal 200; the snap-fit ​​of the limiting hole 317 with the tongue 110 provides a limit in the length L direction of the body 310; and the movable abutment of the limiting protrusion 313 against the door sheet metal 200 provides a limit in the width W direction of the body 310. These designs enable the fixing structure 300 to provide limits in multiple directions, ensuring the stability and reliability of the connection.

[0059] It is worth mentioning that the distance from the limiting protrusion 313 along the width W direction of the body 310 to the door sheet metal 200, and the distance from the limiting part 330 along the height H direction of the body 310 to the door sheet metal 200, are both designed to be approximately 1 mm. A gap of approximately 1.5 mm is maintained between the top wall of the first snap-fit ​​groove 311 and the end of the door sheet metal 200. The structure of the snap-fit ​​part 320 is similar to that of existing snap-fit ​​structures and will not be described further here.

[0060] This solution also includes a vehicle comprising the aforementioned external water-cutting 100 fixed structure 300.

[0061] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0063] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An external water-cutting fixing structure for fixing an external water-cutting device to a vehicle door sheet metal, characterized in that, The fixing structure includes: The main body is inserted into the interior of the external water cutter for connection with the external water cutter; A snap-fit ​​part is provided on the main body for snapping with the door sheet metal; A limiting part is provided on the main body; wherein, When the fixing structure inserts the snap-fit ​​part into the door sheet metal along the installation direction, the limiting part abuts against the outer side wall of the door sheet metal to limit the depth of the snap-fit ​​part inserted into the door sheet metal.

2. The external water-cutting fixing structure as described in claim 1, characterized in that, There are two limiting parts, and the two limiting parts are located on both sides of the snap-fit ​​part.

3. The external water-cutting fixing structure as described in claim 1, characterized in that, The main body is provided with a first snap-fit ​​groove on the side of the main body facing the door sheet metal along the installation direction. The first snap-fit ​​groove is provided on the side of the main body facing the door sheet metal along the installation direction and is used to snap onto both sides of the end of the door sheet metal to provide a limit for the main body in the inward and outward directions along the door sheet metal.

4. The external water-cutting fixing structure as described in claim 3, characterized in that, The first snap-fit ​​groove has an inverted U-shaped cross-section along the installation direction. A first guide slope is provided at the opening of the first snap-fit ​​groove. The first guide slope is used to allow the end of the door sheet metal to enter the first snap-fit ​​groove.

5. The external water-cutting fixing structure as described in claim 1, characterized in that, The body has length, width, and height. The height direction of the body is parallel to the installation direction. The body includes a crossbeam, a longitudinal beam, and a support leg. The crossbeam, the longitudinal beam, and the support leg all extend along the length direction of the body. The crossbeam is located at the end of the longitudinal beam facing away from the door sheet metal. The support leg extends obliquely from the end of the longitudinal beam in a direction away from the door sheet metal. The outer water cutter is provided with a second snap-fit ​​groove and a third snap-fit ​​groove. The end of the longitudinal beam away from the support leg is snapped into the second snap-fit ​​groove, and the end of the support leg away from the crossbeam is snapped into the third snap-fit ​​groove.

6. The external water-cutting fixing structure as described in claim 5, characterized in that, Both the longitudinal beam and the support leg are provided with limiting ribs, which are used to accommodate the manufacturing tolerances of the second and third snap-fit ​​grooves on the external water shear.

7. The external water-cutting fixing structure as described in claim 5, characterized in that, The main body has a limiting hole that penetrates the crossbeam along its width direction, and the outer water shear is provided with a tongue that engages with the limiting hole to provide a limit for the main body in its length direction.

8. The external water-cutting fixing structure as described in claim 7, characterized in that, The limiting hole is inclined on the side wall facing the body and inserted into the external water-cutting direction, which is used to adapt the tongue.

9. The external water-cutting fixing structure as described in claim 5, characterized in that, A limiting protrusion is provided at one end of the crossbeam facing the door sheet metal. The limiting protrusion moves against the door sheet metal and is used to limit the installation of the fixed structure along the width direction of the body. The body is provided with a plurality of second guide slopes along its length direction, the second guide slopes being used to provide guidance for the insertion of the body and the external water cutter; An end cap is provided at one end of the body along its length direction. The end cap movably abuts against the end face of the external water cutter to provide a limit for the insertion of the body. A reinforcing rib is provided between the end cap and the longitudinal beam.

10. A vehicle, characterized in that, Includes an external water-cutting fixing structure as described in any one of claims 1 to 9.

Images