Automobile front windshield clamping device

Abstract

The application relates to the technical field of automobile glass sealing elements, in particular to a clamping device for a front windshield of an automobile, which comprises a fastening part, a clamping part, a first skeleton part in a U-shaped structure, a first elastic body, a first support part, a second skeleton part in a Y-shaped structure, a second elastic body in an inverted U-shaped structure, and a clamping groove. The first elastic body is in an I-shaped structure and is connected with the first skeleton part and the clamping part to form a closed first through hole. The second elastic body is in an inverted U-shaped structure and has an opening facing the first support part to form a second through hole. The first skeleton part and the second skeleton part are fixedly connected to form the clamping groove with an opening. The clamping groove is connected with a plug-in part, so that the clamping part is plugged into the clamping groove through the opening. The first skeleton part is connected with one side surface of the plug-in part of a ventilation cover plate. The first elastic body and the second skeleton part are connected with the other side surface of the plug-in part of the ventilation cover plate, so that the opening is sealed and connected with the ventilation cover plate. The application improves the tightness and stability of the ventilation cover plate.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile glass sealing components, in particular to an automobile windshield clamping device. Background Art

[0002] Clip-on strips are widely used in the automotive industry, particularly in the installation of grilles and windshields. They not only effectively connect the grille and windshield, but also ensure a well-matched appearance. Traditional clip-on strips are designed to fit around surrounding components: a metal frame is built into the strip, the grille's clipping feet engage with the strip via barbed hooks, and the strip is bonded to the windshield using double-sided tape.

[0003] Chinese patent application publication number: CN112238740A, discloses a sealing system for connecting a drainage device and a vehicle window glass, comprising: a fixed section for connecting to the vehicle window glass and a snap-on section for detachably connecting to the drainage device, the snap-on section comprising a support body, an elastic arm, and a transition portion connecting the support body and the elastic arm: wherein, the sealing system also comprises a positioning element connected to the transition portion and the support body, the positioning element is at least partially elastically deformable: further, the positioning element comprises an elastic support foot connected to the transition portion and a snap-on joint connected to the support body, and the cross-section of the snap-on joint is U-shaped or V-shaped, and the U-shaped or V-shaped opening faces the support body.

[0004] It can be seen that although the above technical solution can achieve sealing and assembly, the following problems still exist: there are limitations in the coordination between the glass and the ventilation cover, which affects the user experience. Summary of the Invention

[0005] To this end, the present invention provides a vehicle windshield clamping device to overcome the problem of poor sealing performance in the cooperation between the glass and the ventilation cover in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides a front windshield clamping device for an automobile. The clamping device is a strip-shaped extended structure, and its cross-section includes:

[0007] a fastening portion, which is fixedly connected to the windshield and is used to support the windshield;

[0008] A clamping portion, which is arranged at the front end of the fastening portion near the vent cover, includes a first frame portion with a U-shaped structure and a first elastic body arranged in the U-shaped structure of the first frame portion near the fastening portion, the first elastic body having an I-shaped structure and connected to the first frame portion and the clamping portion to form a closed first through hole;

[0009] a first support portion, which is arranged at a connection position between the fastening portion and the clamping portion and extends in a thickness direction of the windshield, the first support portion including a second frame portion of a Y-shaped structure and a second elastic body arranged at a front end of the Y-shaped structure near a side of the windshield, the second elastic body being an inverted U-shaped structure, the opening of the inverted U-shaped structure facing the first support portion, and a second through hole being formed at another front end of the Y-shaped structure of the second frame portion away from the windshield;

[0010] The first frame portion and the second frame portion are fixedly connected to form a snap-fit ​​groove having an opening, the snap-fit ​​groove being used to connect with the plug-in portion of the vent cover, so that the plug-in portion is plugged into the snap-fit ​​groove through the opening, the first frame portion being connected to one side surface of the plug-in portion of the vent cover, and the first elastic body and the second frame portion being connected to the other side surface of the plug-in portion of the vent cover, so that the opening is sealed by the vent cover;

[0011] The bottom end of the plug-in portion is a hook-shaped structure for hooking the first elastic body, and the end portion where the first skeleton portion and the first elastic body are connected to the plug-in portion has a barb structure for limiting the hook-shaped structure from falling out;

[0012] The first skeleton portion includes a first metal skeleton and a first outer covering portion, and the elastic deformation of the first outer covering portion is smaller than that of the first elastic body;

[0013] The second skeleton portion includes a second metal skeleton and a second outer covering portion, and the elastic deformation of the second outer covering portion is smaller than that of the second elastic body.

[0014] Furthermore, the first elastic body includes a first vertical body of a U-shaped structure and a first bent body of a barb structure, and the first vertical body and the first bent body are an integrally formed structure, wherein:

[0015] One end of the first vertical body of the U-shaped structure is connected to the first frame, and the other end is connected to the second frame near the inner bottom of the opening, and the opening of the first vertical body of the U-shaped structure faces the connection between the first frame and the fastening portion;

[0016] One end of the first bending body is hooked with the hook structure at the bottom of the plug-in portion, and the other end is connected to one end of the first vertical body.

[0017] Furthermore, the lateral width of the snap-in slot opening is 3 / 5 of the bottom width of the bottom of the inner cavity of the snap-in slot, the hook structure of the first skeleton part close to the opening side matches the first hook structure shape at the end of the plug-in part, and the hook structure of the first bent body close to the plug-in part side matches the second hook structure shape at the end of the plug-in part.

[0018] Furthermore, when the first elastic body and the plug-in part are hooked with each other after assembly, the elastic deformation of the first elastic body in the vertical direction is 1 / 10 to 1 / 8 of the original height of the first vertical body, the elastic deformation of the first elastic body in the horizontal direction is 1 / 8 to 1 / 6 of the original width of the first bent body, and at least 1 / 5 of the area of ​​the contact surface between the plug-in part and the second skeleton part is higher in the horizontal direction than the contact surface between the plug-in part and the first skeleton part.

[0019] Furthermore, the second elastic body includes a second vertical body and a second bent body, and the second vertical body and the second bent body are an integrally formed structure, wherein:

[0020] The second vertical body is arranged at a front end of the Y-shaped structure of the second frame portion close to the windshield and is perpendicular to the fastening portion. The second vertical body extends to at least half the thickness of the windshield and contacts the windshield.

[0021] The second bending body has a first bending portion and a second bending portion. One end of the first bending portion is connected to one end of the second vertical body and partially contacts the top of the first supporting portion. The second bending portion extends to the other front end of the Y-shaped structure of the second skeleton portion away from the glass.

[0022] Furthermore, a two-dimensional rectangular coordinate system is constructed with the transverse direction of the outer side of the bottom of the clamping groove as the X axis and the vertical direction of the outer side of the first skeleton part away from the opening as the Y axis, wherein:

[0023] The contact points between the second bending body and the first supporting portion are respectively a first contact point A and a second contact point B. The first contact point A and the second contact point B constitute a first curved portion. The curve shape fitting formula of the first curved portion AB is: , c is the horizontal distance width between the first contact point and the Y axis;

[0024] The contact point between the second vertical body and the top of the windshield is the third contact point C. The contact point where the second vertical body extends to half the thickness of the windshield and contacts the outer side of the first support portion is the fourth contact point D. The third contact point C and the fourth contact point D constitute a second curved portion. The curve shape fitting formula of the second curved portion CD is: , w is the horizontal distance width between the third contact point C and the Y axis.

[0025] Furthermore, the fastening portion includes a third metal skeleton and a third outer covering portion, and the third metal skeleton is connected to one end of the first metal skeleton to form an integral structure.

[0026] Furthermore, the contact area between the second elastic body and the first supporting part is negatively correlated with the size of the cross-sectional area of ​​the second through hole, the size of the second through hole is positively correlated with the first angle α, the angles of the two bent edges of the second bent body of the second elastic body are between 130° and 150°, and α is the angle between the planes sandwiched by the two front ends of the Y-shaped structure.

[0027] Furthermore, the third metal skeleton is parallel to a front end of the first angle, the first through hole is a parallelogram-like shape, and the second through hole is a rectangle-like shape.

[0028] Furthermore, the contact point between the first bending body of the first elastic body and the plug-in portion is the fifth contact point E, the point of the first through hole close to the first supporting portion is the sixth contact point F, the fifth contact point E and the sixth contact point F constitute a third curved portion, and the curve shape fitting formula of the third curved portion EF is: , s is the horizontal distance width between the fifth contact point E and the Y axis;

[0029] The contact area between the first elastic body and the inner side of the clamping groove is negatively correlated with the size of the first through hole, and the size of the first through hole is positively correlated with the first length d, wherein,

[0030] The first length d is the length of the vertical portion of the clamping slot on one side close to the first supporting portion and the fastening portion.

[0031] Compared with the prior art, the beneficial effect of the present invention is that, by providing a fastening portion, a clamping portion and a ventilation cover, the present invention improves the stability and sealing of the clamping, enhances the buffering and shock-absorbing ability of the clamping device, and effectively protects the windshield from external force. In particular, the first elastomer and the second elastomer are provided to form a first through hole and a second through hole between the first elastomer and the second elastomer and the first support portion, which helps to make the second elastomer more easily deformed when subjected to pressure and increase compressibility. The first elastomer can be deformed when subjected to pressure from the hook structure of the plug-in portion, providing necessary buffering and elastic support, improving the overall strength and assembly effect, and realizing tight sealing and stable installation of the ventilation cover.

[0032] Furthermore, the present invention also provides a curve shape fitting formula for the second vertical body and the second bent portion of the second elastomer, thereby providing a clear and specific framework for the shape design of the second elastomer, thereby further optimizing the stability and durability of the clip-on portion, improving the compressibility and elastic support capabilities of the clip-on device, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of the ventilation cover.

[0033] Furthermore, the present invention provides additional support for the first supporting part, the clamping part and the fastening part through the obliquely arranged second metal skeleton and the continuous and uninterrupted first metal skeleton and the third metal skeleton, thereby improving the connection strength, ensuring the deformation resistance of the clamping device during use, uniformly applying force while reducing the risk of damage to the clamping device, preventing the clamping device from loosening or detaching due to external force or vibration, improving the reliability of the clamping device, and extending the service life of the clamping device.

[0034] Furthermore, the present invention provides a flexible way to optimize and adjust the mechanical parameters of the clamping part. By precisely controlling the relationship between the contact area between the second elastomer and the first support part, the size of the second through hole, and the bending angle of the first support part, the stability and durability of the clamping part are optimized, thereby further improving the compressibility and elastic support capacity of the clamping device, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of ventilation.

[0035] Furthermore, the present invention provides a curve fitting formula for the third curved portion EF formed by the first vertical body and the first bent portion of the first elastomer, thereby providing a clear and specific framework for the shape design of the first elastomer, thereby further optimizing the stability and durability of the clip-on portion, improving the compressibility and elastic support capacity of the clip-on device, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of the ventilation cover.

[0036] Furthermore, the present invention provides a flexible way to optimize and adjust the mechanical parameters of the clip-on portion. By precisely controlling the relationship between the contact area between the first elastomer and the clip-on groove, the size of the first through hole, and the first length d, it can ensure that the clip-on device has sufficient stability and durability, making the clip-on device compact and easy to install, thereby further improving the compressibility and elastic support capacity of the clip-on device, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of the ventilation cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic structural diagram of a vehicle windshield clamping device according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic structural diagram of a first elastic body according to an embodiment of the present invention;

[0039] Figure 3 This is a schematic structural diagram of the second elastic body according to an embodiment of the present invention;

[0040] Figure 4 Schematic diagram of the positions of the force points and contact points in the clamping device according to an embodiment of the present invention;

[0041] Figure 5 A schematic diagram of a first angle and first height of an embodiment of the present invention;

[0042] In the figure: 1, fastening part; 21, first supporting part; 211, first elastic body; 2111, first vertical body; 2112, first bending body; 212, first through hole; 213, second elastic body; 2131, second vertical body; 2132, second bending body; 214, second through hole; 22, snap-in groove; 31, ventilation cover; 32, plug-in part; 4, windshield. DETAILED DESCRIPTION

[0043] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0044] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0045] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0046] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] See also Figure 1 , which is a schematic structural diagram of a vehicle windshield clamping device according to an embodiment of the present invention; specifically, an embodiment of the present invention provides a vehicle windshield clamping device, comprising: the clamping device is a bar-shaped extension structure, and its cross-section includes:

[0048] A fastening portion 1, which is fixedly connected to the windshield 4 and is used to support the windshield 4;

[0049] The clamping portion is provided at the front end of the fastening portion 1 near the vent cover 31, and includes a first frame portion with a U-shaped structure and a first elastic body 211 provided within the U-shaped structure of the first frame portion near the fastening portion 1. The first elastic body 211 is an I-shaped structure and is connected to the first frame portion and the clamping portion to form a closed first through hole 212.

[0050] A first support portion 21 is provided at the connection position between the fastening portion 1 and the clamping portion and extends in the thickness direction of the windshield 4. The first support portion 21 includes a second frame portion of a Y-shaped structure and a second elastic body 213 provided at a front end of the Y-shaped structure near the windshield 4. The second elastic body 213 is an inverted U-shaped structure with an opening facing the first support portion 21. A second through hole 214 is formed at the other front end of the Y-shaped structure of the second frame portion away from the windshield 4.

[0051] The first frame portion and the second frame portion are fixedly connected to form a snap-fit ​​groove 22 having an opening. The snap-fit ​​groove 22 is used to connect with the plug-in portion 32 of the vent cover 31, so that the plug-in portion is plugged into the snap-fit ​​groove 22 through the opening. The first frame portion is connected to one side surface of the plug-in portion 32 of the vent cover 31, and the first elastic body 211 and the second frame portion are connected to the other side surface of the plug-in portion 32 of the vent cover 31, so that the opening is sealed by the vent cover 31.

[0052] The bottom end of the plug-in portion 32 is a hook-shaped structure for hooking the first elastic body 211, and the end portion where the first skeleton portion and the first elastic body 211 are connected to the plug-in portion 32 has a barb structure for limiting the hook-shaped structure from coming out.

[0053] The first skeleton portion includes a first metal skeleton and a first outer covering portion, and the elastic deformation of the first outer covering portion is smaller than that of the first elastic body 211;

[0054] The second skeleton portion includes a second metal skeleton and a second outer covering portion, and the elastic deformation of the second outer covering portion is smaller than that of the second elastic body 213 .

[0055] It can be understood that the "U-shaped structure" described in this embodiment is a structure with a cross-sectional shape similar to a "U" shape, and the "I-shaped structure" is a structure with a cross-sectional shape similar to an "I" shape.

[0056] In a specific embodiment, the fastening portion 1 is fixedly connected to the windshield 4 using a double-sided tape structure to ensure a secure fit and waterproof performance between the fastening portion 1 and the windshield 4, while also supporting the windshield 4. In practice, the fastening portion 1 and the windshield 4 can also be connected using various connection methods, such as adhesives and bolts, which are not specifically limited here and will not be described in detail.

[0057] It is understandable that when the ventilation cover 31 needs to be installed, the plug-in portion 32 is first inserted into the clamping groove 22 through the opening of the clamping portion, and the bottom end of the hook-shaped structure is hooked to hold the first elastic body 211. At this time, the first elastic body 211 is deformed due to the squeezing of the plug-in portion 32, generating a certain restoring force, thereby firmly fixing the plug-in portion 32 in the clamping groove 22. Finally, the ventilation cover 31 covers the opening to complete the entire installation process. The provision of the first skeleton portion and the first through hole 212 of the U-shaped structure helps to make the first elastic body 211 more easily deformed when subjected to pressure, thereby increasing compressibility, helping to provide necessary buffering when the ventilation cover 31 is installed, enhancing the elasticity and supporting force of the first support portion 21, and reducing stress concentration; at the same time, it can form a tighter seal after the ventilation cover 31 is installed to prevent foreign substances such as dust and moisture from entering the interior of the clamping device.

[0058] In a specific embodiment, the first frame portion is a U-shaped structure, and the second frame portion is a Y-shaped structure.

[0059] In implementation, the shapes of the first skeleton portion and the second skeleton portion can be determined according to actual conditions, and are not specifically limited here and will not be described in detail.

[0060] The present invention improves the stability and sealing of the clamping by providing a fastening portion 1, a clamping portion and a ventilation cover 31, enhances the buffering and shock-absorbing ability of the clamping device, and effectively protects the front windshield 4 from damage by external forces. In particular, the first elastomer 211 and the second elastomer 213 are provided to form a first through hole 212 and a second through hole 214 between the first elastomer 211 and the second elastomer 213 and the first support portion 21, which helps to make the second elastomer 213 more easily deformed when subjected to pressure and increase compressibility. The first elastomer 211 can be deformed when subjected to pressure from the hook structure of the plug-in portion 32, providing necessary buffering and elastic support, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of the ventilation cover 31.

[0061] See also Figure 2 and Figure 3 As shown, Figure 2 This is a schematic structural diagram of the first elastic body 211 according to an embodiment of the present invention; Figure 3 Schematic diagram of the structure of the second elastic body 213 of the embodiment of the present invention; Specifically, the first elastic body 211 includes a first vertical body 2111 of a U-shaped structure and a first bent body 2112 of a barb structure, and the first vertical body 2111 and the first bent body 2112 are an integrally formed structure, wherein,

[0062] One end of the first vertical body 2111 of the U-shaped structure is connected to the first frame, and the other end is connected to the second frame near the inner bottom of the opening. The opening of the first vertical body 2111 of the U-shaped structure faces the connection between the first frame and the fastening part 1;

[0063] One end of the first bending body 2112 is hooked with the hook structure at the bottom of the plug-in portion 32 , and the other end is connected to one end of the first vertical body 2111 .

[0064] It is understood that the first elastic body 211 is formed integrally from a first vertical body 2111 and a first bent body 2112. The first vertical body 2111 fits tightly against the inside of the snap-fitting groove 22 near the fastening portion 1, but leaves a gap in between to increase compressibility and improve overall strength. This effectively avoids the installation of the vent cover 31 and facilitates assembly. The first bent body 2112, on the other hand, contacts the inside of the snap-fitting groove 22 near the first support at one end, while the other end extends outward to engage with the hook-shaped structure at the bottom of the plug-in portion 32, allowing the plug-in portion 32 to be more securely snapped into the snap-fitting groove 22 and improving the structural stability and durability of the entire snap-fitting device.

[0065] In practice, the thickness and length of the first bent body 2112 are not specifically limited, as long as the first bent body 2112 ensures that the plug-in portion 32 can be more firmly clamped in the clamping groove 22. The length and thickness of the first vertical body 2111 are also not specifically limited, as long as the first vertical body 2111 and the inside of the clamping groove 22 can form a first through hole 212 to increase compressibility and improve overall strength, which can effectively avoid the installation of the ventilation cover 31 and facilitate assembly, and no further details will be given here.

[0066] Specifically, the lateral width of the opening of the snap-in groove 22 is 3 / 5 of the bottom width of the bottom of the inner cavity of the snap-in groove 22, the hook structure of the first skeleton part close to the side of the opening matches the first hook structure shape at the end of the plug-in part 32, and the hook structure of the first bent body 2112 close to the side of the plug-in part 32 matches the second hook structure shape at the end of the plug-in part 32.

[0067] It can be understood that the barb structure of the first skeleton part close to the opening side matches the first hook structure shape at the end of the plug-in part 32, and the barb structure of the first bent body 2112 close to the plug-in part 32 side matches the second hook structure shape at the end of the plug-in part 32, which can enable the plug-in part 32 and the first elastic body 211 and the first skeleton to form a better hooking state, thereby improving the sealing of the ventilation cover 31.

[0068] Specifically, when the first elastic body 211 and the plug-in part 32 are hooked with each other after assembly, the elastic deformation of the first elastic body 211 in the vertical direction is 1 / 10 to 1 / 8 of the original height of the first vertical body 2111, and the elastic deformation of the first elastic body 211 in the horizontal direction is 1 / 8 to 1 / 6 of the original width of the first bending body 2112, and at least 1 / 5 of the area of ​​the contact surface between the plug-in part 32 and the second skeleton part is higher in the horizontal direction than the contact surface between the plug-in part 32 and the first skeleton part.

[0069] In a specific embodiment, preferably, when the first elastic body 211 and the plug-in portion 32 are hooked together after assembly, the elastic deformation of the first elastic body 211 in the vertical direction is 1 / 9 of the original height of the first vertical body 2111, and the elastic deformation of the first elastic body 211 in the horizontal direction is 1 / 7 of the original width of the first bent body 2112. In addition, 1 / 5 of the area of ​​the contact surface between the plug-in portion 32 and the second skeleton portion is higher in the horizontal direction than the contact surface between the plug-in portion 32 and the first skeleton portion. In practice, the elastic deformation of the first elastic body 211 in the vertical direction and the elastic deformation of the first elastic body 211 in the horizontal direction can be determined according to actual conditions, and are not specifically limited here and will not be described in detail.

[0070] Specifically, the second elastic body 213 includes a second vertical body 2131 and a second bent body 2132. The second vertical body 2131 and the second bent body 2132 are an integrally formed structure.

[0071] The second vertical body 2131 is arranged at the front end of the Y-shaped structure of the second frame portion close to the windshield 4 and is arranged perpendicular to the fastening portion 1. The second vertical body 2131 extends to at least half the thickness of the windshield 4 and contacts the windshield 4.

[0072] The second bending body 2132 has a first bending portion and a second bending portion. One end of the first bending portion is connected to one end of the second vertical body 2131 and partially contacts the top of the first supporting portion 21. The second bending portion extends to the other front end of the Y-shaped structure of the second skeleton portion away from the glass.

[0073] It is understood that the second elastic body 213 is integrally formed from a second vertical body 2131 and a second bent body 2132, creating a complete structure. The second vertical body 2131 serves as a buffer and support structure between the windshield 4 and the first support portion 21. It is positioned between the first support portion 21 and the windshield 4, directly contacting the windshield 4. It absorbs and disperses impact forces on the windshield 4 while providing stable support, ensuring that the windshield 4 can be securely mounted on the vehicle. The second bent body 2132 includes a first bent portion and a second bent portion, which together form the complex shape of the second elastic body 213. The second bent body 2132 serves as a transition and connection, allowing the second vertical body 2131 to smoothly transition to the second bent body 2132 while contacting the top of the first support portion 21, increasing structural stability and support. The second bent portion of the second bent body 2132 extends along the direction of the opening.

[0074] In practice, the thickness of the second bent body 2132 is not specifically limited, as long as the second bent body 2132 is flush with the windshield 4 in height. The lengths of the second bent body 2132 and the second vertical body 2131 are not specifically limited either, as long as the second vertical body 2131 can serve as a buffer and support structure between the windshield 4 and the first support portion 21, the second bent body 2132 serves as a transition connection part between the second vertical body 2131 and the second bent body 2132, and the second through hole 214 formed by the second bent body 2132 and the first support portion can increase compressibility and ensure sealing. No further details will be given here.

[0075] In a specific embodiment, a protrusion is provided on the contact surface between the first bending portion and the first supporting portion 21 away from the second vertical body 2131 , for clamping the first supporting portion 21 together with the second vertical body 2131 to ensure a compact connection.

[0076] See also Figure 4 and Figure 5 As shown, Figure 4 Schematic diagram of the positions of the force points and contact points in the clamping device according to an embodiment of the present invention; Figure 5 A schematic diagram of a first angle and first height of an embodiment of the present invention;

[0077] Specifically, a two-dimensional rectangular coordinate system is constructed with the horizontal direction of the outer side of the bottom of the clamping groove 22 as the X axis and the vertical direction of the outer side of the first skeleton part away from the opening as the Y axis, wherein:

[0078] The contact points between the second bending body 2132 and the first supporting portion 21 are the first contact point A and the second contact point B, respectively. The first contact point A and the second contact point B form a first curved portion. The curve shape fitting formula of the first curved portion AB is: , c is the horizontal distance width between the first contact point and the Y axis;

[0079] The contact point between the second vertical body 2131 and the top of the windshield 4 is the third contact point C. The contact point between the second vertical body 2131 and the outer side of the first support portion 21, which extends to half the thickness of the windshield 4, is the fourth contact point D. The third contact point C and the fourth contact point D form a second curved portion. The curve shape fitting formula of the second curved portion CD is: , w is the horizontal distance width between the third contact point C and the Y axis.

[0080] As can be understood, the first curved portion AB is an inverted V-shape, so the shape of the first curved portion AB is described using log and sine functions. Since the two-dimensional rectangular coordinate system is defined by the X-axis, the horizontal direction of the bottom outside of the engaging groove 22, and the Y-axis, the vertical direction of the first skeleton portion away from the opening, the sine function incorporates a displacement c when describing its shape. Similarly, the second curved portion CD is approximately an S-shaped curve, so it is also described using log and trigonometric functions. Furthermore, since the slope of the second curved portion CD is relatively high, the cosine function incorporates a displacement w when describing its shape. By adjusting the function positions, the cosine function better matches the actual shapes of the first and second curved portions AB and CD. The present invention also provides curve shape formulas for the second vertical portion 2131 and the second bend of the second elastic body 213, including the first curved portion AB and the second curved portion CD, and performs curve shape fitting for each. This provides a clear and specific framework for the shape design of the second elastic body 213.

[0081] The present invention also provides a curve shape fitting formula for the second vertical body 2131 and the second bending part of the second elastic body 213, thereby providing a clear and specific framework for the shape design of the second elastic body 213, thereby further optimizing the stability and durability of the clamping part, improving the compressibility and elastic support capacity of the clamping device, improving the overall strength and assembly effect, and realizing tight sealing and stable installation of the ventilation cover 31.

[0082] Specifically, the fastening portion 1 includes a third metal frame and a third outer covering portion, and the third metal frame is connected to one end of the first metal frame to form an integral structure.

[0083] It is understood that the obliquely arranged second metal frame can effectively enhance the support strength of the first support portion 21, resisting forces and pressures from different directions and helping to disperse stress. The first metal frame provides additional support for the clamping portion, and the third metal frame provides additional support for the fastening portion 1. The first and third metal frames are integrally formed, which helps to enhance the connection strength and overall stability of the clamping portion and the fastening portion 1, ensuring the uniformity and stability of the entire clamping device during the stress process, further achieving a tight seal and stable installation for ventilation.

[0084] In a specific embodiment, the first metal skeleton, the second metal skeleton, and the third metal skeleton are all metal skeletons. The metal skeletons can strengthen the supporting strength of the clamping device, making it less susceptible to damage, ensuring that it can effectively support and fix the target object, resist external impact and pressure, reduce the risk of damage to the clamping device, and extend the service life of the clamping device. At the same time, it can ensure that the shape of the clamping device is stable and does not deform. In implementation, the materials of the first metal skeleton, the second metal skeleton, and the third metal skeleton can also be alloy skeletons, or other skeletons with a certain hardness as support, which are not specifically limited here and will not be elaborated.

[0085] The present invention provides additional support for the first support part 21, the clamping part and the fastening part 1 through the obliquely arranged second metal skeleton and the continuous and uninterrupted first metal skeleton and the third metal skeleton, thereby improving the connection strength, ensuring the deformation resistance of the clamping device during use, uniformly applying force while reducing the risk of damage to the clamping device, preventing the clamping device from loosening or detaching due to external force or vibration, improving the reliability of the clamping device, and extending the service life of the clamping device.

[0086] Specifically, the contact area between the second elastic body 213 and the first supporting portion is negatively correlated with the size of the cross-sectional area of ​​the second through hole 214, the size of the second through hole 214 is positively correlated with the first angle α, and the angles of the two bent edges of the second bent body 2132 of the second elastic body 213 are between 130° and 150°, where α is the angle between the planes sandwiched by the two front ends of the Y-shaped structure.

[0087] It can be understood that the contact area between the second elastic body 213 and the first support part is negatively correlated with the size of the second through hole 214, which means that when the size of the second through hole 214 increases, the contact area between the second elastic body 213 and the first support part will decrease accordingly; conversely, when the size of the second through hole 214 decreases, the contact area between the second elastic body 213 and the first support part will increase. This design can ensure that the contact and support effect between the second elastic body 213 and the first support part is optimized by adjusting the size of the second through hole 214, thereby enhancing the stability and durability of the entire clamping part.

[0088] Secondly, the size of the second through hole 214 is related to the first angle There is a positive correlation, indicating that when the first angle Increase, that is, when the bending angle of the first support portion increases, the size of the second through hole 214 will also increase accordingly; on the contrary, when the first angle Decrease means that when the bending angle decreases, the size of the second through hole 214 will decrease. This design can ensure that the size of the second through hole 214 can be changed by adjusting the bending angle of the first support portion, thereby affecting the elasticity and support effect of the second elastic body 213.

[0089] The present invention provides a flexible way to optimize and adjust the mechanical parameters of the clamping part. By precisely controlling the relationship between the contact area between the second elastic body 213 and the first support part, the size of the second through hole 214, and the bending angle of the first support part, the stability and durability of the clamping part are optimized, thereby further improving the compressibility and elastic support capacity of the clamping device, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of ventilation.

[0090] Specifically, the third metal frame is parallel to a front end of the first angle, the first through hole 212 is a parallelogram-like shape, and the second through hole 214 is a rectangle-like shape.

[0091] Specifically, the contact point between the first bent body 2112 of the first elastic body 211 and the plug-in portion 32 is the fifth contact point E, and the point where the first through hole 212 is close to the first supporting portion 21 is the sixth contact point F. The fifth contact point E and the sixth contact point F constitute a third curved portion. The curve shape fitting formula of the third curved portion EF is: , s is the horizontal distance width between the fifth contact point E and the Y axis.

[0092] It is understood that since the two-dimensional rectangular coordinate system has the horizontal direction of the outer side of the bottom of the engaging groove as the X-axis and the vertical direction of the outer side of the first skeleton portion away from the opening as the Y-axis, when using sine and quadratic functions to describe the shape of the third curved portion EF, a displacement S is introduced. By adjusting the positions of the sine and quadratic functions, they are better matched to the actual shape of the third curved portion EF. The present invention provides a curve fitting formula for the third curved portion EF formed by the first vertical body 2111 and the first bent portion of the first elastic body 211, thereby providing a clear and specific framework for the shape design of the first elastic body 211.

[0093] The present invention provides a curve fitting formula for the third curved portion EF formed by the first vertical body 2111 and the first bending portion of the first elastic body 211, thereby providing a clear and specific framework for the shape design of the first elastic body 211, thereby further optimizing the stability and durability of the clamping portion, improving the compressibility and elastic supporting capacity of the clamping device, improving the overall strength and assembly effect, and realizing tight sealing and stable installation of the ventilation cover 31.

[0094] Specifically, the contact area between the first elastic body 211 and the inner side of the clamping groove 22 is negatively correlated with the size of the first through hole 212, and the size of the first through hole 212 is positively correlated with the first length d, wherein,

[0095] The first length d is the length of the vertical portion of the engaging groove 22 close to the first supporting portion 21 and the fastening portion 1 .

[0096] It can be understood that the contact area between the first elastic body 211 and the snap-fit ​​groove 22 is negatively correlated with the size of the first through hole 212, which means that when the size of the first through hole 212 increases, the contact area between the first elastic body 211 and the inner side of the snap-fit ​​groove 22 will decrease accordingly; conversely, when the size of the first through hole 212 decreases, the contact area between the first elastic body 211 and the inner side of the snap-fit ​​groove 22 will increase. This design can ensure that the contact support effect between the first elastic body 211 and the snap-fit ​​groove 22 is optimized by adjusting the size of the first through hole 212, thereby ensuring that the plug-in portion 32 can be firmly snapped into the snap-fit ​​groove 22.

[0097] Secondly, the size of the first through hole 212 is positively correlated with the length of the vertical portion of the snap-fitting groove 22 on the side close to the first support portion 21 and the fastening portion 1 (the first length d), indicating that when the first length d increases, the size of the first through hole 212 will also increase accordingly; conversely, when the first length decreases, the size of the first through hole 212 will decrease. This design can ensure that the size of the first through hole 212 can be changed by adjusting the length of the vertical portion of the snap-fitting groove 22, thereby optimizing the contact support effect between the first elastic body 211 and the snap-fitting groove 22.

[0098] The present invention provides a flexible way to optimize and adjust the mechanical parameters of the clamping part. By precisely controlling the relationship between the contact area between the first elastic body 211 and the clamping groove 22, the size of the first through hole 212 and the first length d, it can ensure that the clamping device has sufficient stability and durability, making the clamping device compact and easy to install, thereby further improving the compressibility and elastic support capacity of the clamping device, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of the ventilation cover 31.

[0099] Specifically, the first elastic body 211 and the first skeleton portion have a seventh contact point G, the seventh contact point G and the sixth contact point F constitute a fourth curved portion, and the curve shape fitting formula of the fourth curved portion FG is: , u is the horizontal distance between the seventh contact point G and the Y axis;

[0100] Specifically, the outside of the hook structure of the first skeleton part has a point H, and the contact point between the hook structure on the first skeleton part and the end of the plug-in part is the eighth contact point I. The point H and the eighth contact point I constitute the fifth curved part. The curve fitting formula of the fifth curved part HI is: , is half of the cross-sectional width of the first skeleton portion, and k is the longitudinal distance from H to the X-axis;

[0101] It is understandable that the shape of the fourth curved portion is similar to a straight line, so the tangent function and the power function are used to describe its shape. Since the fourth curved portion is located in the first quadrant, and since the two-dimensional rectangular coordinate system uses the horizontal direction of the outer side of the bottom of the snap-fit ​​groove as the X-axis and the vertical direction of the outer side of the first skeleton portion away from the opening as the Y-axis, the displacement u is introduced to describe the fourth curved portion. The shape of the fifth curved portion HI is similar to a parabola, so the sine function is used to describe its shape, and the displacements v and k are introduced. By adjusting the position of the sine function, it is better matched with the actual shape of the fifth curved portion HI. The present invention provides a shape fitting formula for the curved portion where the first skeleton portion contacts the first elastic body, as well as a curve shape fitting formula for the hook-shaped structure where the first skeleton portion contacts the plug-in portion, thereby providing a clear and specific framework for the shape design of the first skeleton portion.

[0102] The present invention provides a shape fitting formula for the curved portion where the first skeleton portion contacts the first elastomer, and provides a curve shape fitting formula for the hook-shaped structure where the first skeleton portion contacts the plug-in portion, thereby providing a clear and specific framework for the shape design of the first skeleton portion, thereby further optimizing the stability and durability of the clip-on portion, improving the compressibility and elastic supporting capacity of the clip-on device, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of the ventilation cover 31.

[0103] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A car windshield clamping device, characterized in that: The clamping device is a bar-shaped extension structure, and its cross section includes: a fastening portion, which is fixedly connected to the windshield and is used to support the windshield; A clamping portion, which is arranged at the front end of the fastening portion near the vent cover, includes a first frame portion with a U-shaped structure and a first elastic body arranged in the U-shaped structure of the first frame portion near the fastening portion, the first elastic body having an I-shaped structure and connected to the first frame portion and the clamping portion to form a closed first through hole; a first support portion, which is disposed at a connection position between the fastening portion and the clamping portion and extends in a thickness direction of the windshield, the first support portion comprising a second frame portion of a Y-shaped structure and a second elastic body disposed at a front end of the Y-shaped structure near a side of the windshield, the second elastic body being an inverted U-shaped structure, the opening of the inverted U-shaped structure facing the first support portion, and a second through hole being formed at another front end of the Y-shaped structure of the second frame portion away from the windshield; The first frame portion and the second frame portion are fixedly connected to form a snap-fit ​​groove having an opening, the snap-fit ​​groove being used to connect with the plug-in portion of the vent cover, so that the plug-in portion is plugged into the snap-fit ​​groove through the opening, the first frame portion is connected to one side surface of the plug-in portion of the vent cover, the first elastic body and the second frame portion are connected to the other side surface of the plug-in portion of the vent cover, and the vent cover covers the opening so that the opening is sealed by the vent cover; The bottom end of the plug-in portion is a hook-shaped structure for hooking the first elastic body, and the end portion where the first skeleton portion and the first elastic body are connected to the plug-in portion has a barb structure that limits the hook structure from coming out, wherein the first elastic body includes a first vertical body of a U-shaped structure and a first bent body of a barb structure, wherein, One end of the first vertical body of the U-shaped structure is connected to the first frame, and the other end is connected to the second frame near the inner bottom of the opening, and the opening of the first vertical body of the U-shaped structure faces the connection between the first frame and the fastening portion; one end of the first bent body is hooked with the hook-shaped structure at the bottom of the plug-in portion, and the other end is connected to one end of the first vertical body; the first vertical body is tightly fitted in the position near the fastening portion inside the clamping groove, and a gap is left in the middle to increase compressibility and improve overall strength; At least 1 / 5 of the contact surface between the plug-in portion and the second frame portion is higher in the horizontal direction than the contact surface between the plug-in portion and the first frame portion; The second elastic body includes a second vertical body and a second bent body, and the second vertical body and the second bent body are an integrally formed structure, wherein: The second vertical body is arranged at a front end of the Y-shaped structure of the second frame portion near the windshield and is arranged perpendicular to the fastening portion. The second vertical body extends to at least half the thickness of the windshield and contacts the windshield. The second vertical body serves as a buffer and support structure between the windshield and the first support portion. The second vertical body is arranged between the first support portion and the windshield and is in direct contact with the windshield to absorb and disperse impact force on the windshield. The second bending body has a first bending portion and a second bending portion, one end of the first bending portion is connected to one end of the second vertical body and partially contacts the top of the first supporting portion, and the second bending portion extends to the other front end of the Y-shaped structure of the second frame portion away from the glass; The first skeleton portion includes a first metal skeleton and a first outer covering portion, and the elastic deformation of the first outer covering portion is smaller than that of the first elastic body; The second skeleton portion includes a second metal skeleton and a second outer covering portion, and the elastic deformation of the second outer covering portion is smaller than that of the second elastic body.

2. The automobile windshield clamping device according to claim 1, characterized in that: The first vertical body and the first bent body are an integrally formed structure.

3. The automobile windshield clamping device according to claim 2, characterized in that: The lateral width of the opening of the snap-in slot is 3 / 5 of the bottom width of the bottom of the inner cavity of the snap-in slot, the hook structure of the first skeleton part close to the opening side matches the first hook structure shape at the end of the plug-in part, and the hook structure of the first bent body close to the plug-in part matches the second hook structure shape at the end of the plug-in part.

4. The automobile windshield clamping device according to claim 3, characterized in that: When the first elastic body and the plug-in part are hooked with each other after assembly, the elastic deformation of the first elastic body in the vertical direction is 1 / 10 to 1 / 8 of the original height of the first vertical body, and the elastic deformation of the first elastic body in the horizontal direction is 1 / 8 to 1 / 6 of the original width of the first bending body.

5. The automobile windshield clamping device according to claim 4, characterized in that: A two-dimensional rectangular coordinate system is constructed with the transverse direction of the outer side of the bottom of the clamping groove as the X axis and the vertical direction of the outer side of the first skeleton part away from the opening as the Y axis, wherein: The contact points between the second bending body and the first supporting portion are respectively a first contact point A and a second contact point B. The first contact point A and the second contact point B constitute a first curved portion. The curve shape fitting formula of the first curved portion AB is: , c is the horizontal distance width between the first contact point and the Y axis; The contact point between the second vertical body and the top of the windshield is the third contact point C. The contact point where the second vertical body extends to half the thickness of the windshield and contacts the outer side of the first support portion is the fourth contact point D. The third contact point C and the fourth contact point D constitute a second curved portion. The curve shape fitting formula of the second curved portion CD is: , w is the horizontal distance width between the third contact point C and the Y axis.

6. The automobile windshield clamping device according to claim 3, characterized in that: The fastening portion includes a third metal frame and a third outer covering portion. The third metal frame and one end of the first metal frame are connected to form an integral structure.

7. The automobile windshield clamping device according to claim 6, characterized in that: The contact area between the second elastic body and the first supporting part is negatively correlated with the size of the cross-sectional area of ​​the second through hole, the size of the second through hole is positively correlated with the first angle α, the angles of the two bent edges of the second bent body are between 130° and 150°, and α is the angle between the planes sandwiched by the two front ends of the Y-shaped structure.

8. The automobile windshield clamping device according to claim 7, characterized in that: The third metal frame is parallel to a front end of the first angle, the first through hole is a parallelogram-like shape, and the second through hole is a rectangle-like shape.

9. The automobile windshield clamping device according to claim 4, characterized in that: The contact point between the first bending body of the first elastic body and the plug-in portion is the fifth contact point E, the point of the first through hole close to the first supporting portion is the sixth contact point F, the fifth contact point E and the sixth contact point F constitute a third curved portion, and the curve shape fitting formula of the third curved portion EF is: , s is the horizontal distance width between the fifth contact point E and the Y axis; The contact area between the first elastic body and the inner side of the clamping groove is negatively correlated with the size of the first through hole, and the size of the first through hole is positively correlated with the first length d, wherein, The first length d is the length of the vertical portion of the clamping slot on one side close to the first supporting portion and the fastening portion.

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