Automobile front windshield clamping device

Abstract

The invention relates to the technical field of automobile glass sealing pieces, in particular to an automobile front windshield clamping device. The clamping part comprises a first framework part of a U-like structure and a first elastic body, the first elastic body is of an I-like structure, and the first elastic body, the first framework part and the clamping part are connected to form a closed first through hole; the first supporting part comprises a second framework part of a Y-like structure and a second elastic body of an inverted-U-shaped structure, and an opening of the inverted-U-shaped structure faces the first supporting part to form a second through hole. The first framework part and the second framework part are fixedly connected to form a clamping groove with an opening, the clamping groove is connected with the inserting part so that the clamping part can be inserted into the clamping groove through the opening, the first framework part is connected with the surface of one side of the inserting part of the ventilation cover plate, and the second elastic body and the second framework part are connected with the surface of the other side of the inserting part of the ventilation cover plate. The opening is hermetically connected by the ventilation cover plate; the tightness and the stability of the ventilation cover plate are improved.

Description

Technical Field

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

[0002] The clip strip structure is widely used in the field of automobile manufacturing, especially in the installation process of automobile air intake grille and front windshield. This structure can not only realize the effective connection between the air intake grille and the front windshield, but also obtain a better appearance matching effect. The matching relationship between the traditional clip strip structure and the surrounding parts is: a metal frame is set in the clip strip, the clip foot of the air intake grille is clipped with the clip strip through the barb of the clip strip, and the clip strip is bonded to the front windshield through double-sided tape.

[0003] Chinese patent application publication number: CN112238740A, discloses a sealing system for connecting a drain 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 drain 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 opening of the U-shape or V-shape faces the support body.

[0004] It can be seen that although the above technical solution can achieve sealing and assembly, there are still the following problems: 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 matching of glass and ventilation cover in the prior art.

[0006] In order 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 extension 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 ventilation cover plate, comprises a first frame portion of 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 is an I-shaped structure and is 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 comprises a second frame portion of a Y-shaped structure and a second elastic body arranged at a front end of the Y-shaped structure close to a side of the windshield, the second elastic body is an inverted U-shaped structure, the opening of the inverted U-shaped structure faces the first support portion, and a second through hole is formed at another front end of the Y-shaped structure of the second frame portion away from the windshield;

[0010] The first frame part and the second frame part are fixedly connected to form a clamping groove with an opening, and the clamping groove is used to connect with the plug-in part of the ventilating cover plate, so that the clamping part is plugged into the clamping groove through the opening, the first frame part is connected to the surface of one side of the plug-in part of the ventilating cover plate, and the second elastic body and the second frame part are connected to the surface of the other side of the plug-in part of the ventilating cover plate, so that the opening is sealed and connected by the ventilating cover plate;

[0011] The bottom end of the plug-in portion is a hook-shaped structure for hooking the first elastic body, and the first skeleton portion and the end portion where the first elastic body is connected to the plug-in portion have a barb structure for limiting the hook-shaped structure from coming 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 elastomer.

[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 part;

[0016] One end of the first bending body is hooked with the hook-shaped structure at the bottom of the plug-in portion, and the other end is connected with 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 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, and the barb 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 bending body, and at least 1 / 5 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 bending body, and the second vertical body and the second bending body are an integrally formed structure, wherein:

[0020] The second vertical body is arranged at the front end of the Y-shaped structure of the second frame part close to the windshield and is arranged perpendicular to the fastening part. The second vertical body extends to at least half of 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, and 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 lateral 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 of 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, and the curve shape fitting formula of the first curved portion AB is Y1=log2x+sin(xc), where c is the lateral 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 between the second vertical body extending to half the thickness of the windshield and contacting 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, and the curve shape fitting formula of the second curved portion CD is Y2=log 1.5 x+cos(xw), w is the lateral 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 elastomer and the first supporting body 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 bending body of the second elastomer 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] Further, 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 Y3=sin(xs)+(xs) 2 , s is the lateral 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 groove close to the first supporting portion and the fastening portion.

[0031] Compared with the prior art, the beneficial effect of the present invention lies in 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 the pressure of the hook structure of the plug-in portion, thereby providing necessary buffering and elastic support, improving the overall strength and assembly effect, and achieving 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 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.

[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 clip-on part, and optimizes the stability and durability of the clip-on part by precisely controlling the relationship between the contact area between the second elastomer and the first support body, the size of the second through hole, and the bending angle of the first support body, thereby further 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 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 bending 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 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.

[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 be ensured that the clip-on device has sufficient stability and durability, so that the clip-on device has a compact structure and is easy to install, thereby further 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. 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 a 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 the embodiment of the present invention;

[0041] Figure 5 It is a schematic diagram of a first angle and a 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 only used to explain the present invention and are not used 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 protection scope 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 drawings. This is merely 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] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] See also Figure 1 As shown, it is a schematic diagram of the structure of a front windshield clamping device of an automobile according to an embodiment of the present invention; specifically, an embodiment of the present invention provides a front windshield clamping device of an automobile, including: the clamping device is a strip-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 part is arranged at the front end of the fastening part 1 near the ventilation cover plate 31, and includes a first frame part of a U-shaped structure and a first elastic body 211 arranged in the U-shaped structure of the first frame part near the fastening part 1. The first elastic body 211 is an I-shaped structure and is connected to the first frame part and the clamping part to form a closed first through hole 212;

[0050] A first support portion 21 is provided at a 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 close to the windshield 4. The second elastic body 213 is an inverted U-shaped structure. The opening of the inverted U-shaped structure faces the first support portion 21, and a second through hole 214 is formed at another front end of the Y-shaped structure of the second frame portion away from the windshield 4.

[0051] The first frame part and the second frame part are fixedly connected to form a clamping groove 22 with an opening, and the clamping groove 22 is used to connect with the plug-in portion 32 of the ventilating cover plate 31, so that the clamping portion is plugged into the clamping groove 22 through the opening, the first frame part is connected to the surface of one side of the plug-in portion 32 of the ventilating cover plate 31, and the second elastic body 213 and the second frame part are connected to the surface of the other side of the plug-in portion 32 of the ventilating cover plate 31, so that the opening is sealed and connected by the ventilating cover plate 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 first skeleton portion and the end portion where the first elastic body 211 and the plug-in portion 32 are connected have 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 frame portion includes a second metal frame 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 through a double-sided tape structure to ensure the fastening portion 1 and the windshield 4 are firmly attached and waterproof, and the windshield 4 is supported by the fastening portion 1. In practice, the fastening portion 1 and the windshield 4 can also be connected by adhesives, bolts and other connection methods, 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 extrusion of the plug-in portion 32, and a certain restoring force is generated, 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 first skeleton portion and the first through hole 212 of the U-shaped structure are provided to help the first elastic body 211 to deform more easily 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, the ventilation cover 31 can form a tighter seal after installation to prevent foreign substances such as dust and moisture from entering the interior of the clamping device.

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

[0059] The present invention improves the stability and sealing of the clamping by setting the fastening part 1, the clamping part and the ventilation cover 31, enhances the buffering and shock-absorbing ability of the clamping device, and effectively protects the front windshield 4 from external force damage. In particular, the first elastomer 211 and the second elastomer 213 are set 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 part 21, which helps to make the second elastomer 213 more easily deformed when subjected to pressure and increase the compressibility. The first elastomer 211 can be deformed when subjected to the pressure of the hook structure of the plug-in part 32, providing necessary buffering and elastic support, improving the overall strength and assembly effect, and realizing the tight sealing and stable installation of the ventilation cover 31.

[0060] 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,

[0061] 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, and 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;

[0062] 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 .

[0063] It can be understood that the first elastic body 211 is formed by the first vertical body 2111 and the first bent body 2112 in one piece. The first vertical body 2111 fits tightly to the inner side of the clamping groove 22 near the fastening part 1, but leaves a gap in the middle to increase compressibility and improve the overall strength, which can effectively avoid the installation of the ventilation cover 31 and facilitate assembly. The first bent body 2112 contacts the inner side of the clamping groove 22 near the first support at one end, and extends outward at the other end to hook with the hook structure at the bottom of the plug-in part 32, so that the plug-in part 32 can be more firmly clamped in the clamping groove 22, while improving the structural stability and durability of the entire clamping device.

[0064] In practice, the thickness and length of the first bending body 2112 are not specifically limited, as long as the first bending body 2112 can ensure 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 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.

[0065] 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 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 bending 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.

[0066] 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, so that the plug-in part 32 and the first elastic body 211 and the first skeleton can form a better hooking state, thereby improving the sealing of the ventilation cover 31.

[0067] 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 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.

[0068] In a specific embodiment, preferably, when the first elastic body 211 and the plug-in portion 32 are hooked with each other after being assembled, 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 bending body 2112, and 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 implementation, 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 repeated.

[0069] Specifically, the second elastic body 213 includes a second vertical body 2131 and a second bending body 2132, and the second vertical body 2131 and the second bending body 2132 are an integrally formed structure, wherein:

[0070] The second vertical body 2131 is arranged at the front end of the Y-shaped structure of the second frame part close to the windshield 4 and is arranged perpendicular to the fastening part 1. The second vertical body 2131 extends to at least half of the thickness of the windshield 4 and contacts the windshield 4.

[0071] 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, and the second bending portion extends to the other front end of the Y-shaped structure of the second skeleton portion away from the glass.

[0072] It can be understood that the second elastic body 213 is formed by the second vertical body 2131 and the second bending body 2132 in one piece, and the structure is complete. Among them, the second vertical body 2131 is used as a buffer and support structure between the windshield 4 and the first support part 21, and is arranged between the first support part 21 and the windshield 4, and is in direct contact with the windshield 4, which can absorb and disperse the impact force of the windshield 4, and at the same time provide a stable support force to ensure that the windshield 4 can be firmly installed on the car. The second bending body 2132 includes a first bending part and a second bending part, and these two parts together constitute the complex shape of the second elastic body 213. Among them, the second bending body 2132 plays a role of transition and connection, which enables the second vertical body 2131 to smoothly transition to the second bending body 2132, and at the same time forms contact with the top of the first support part 21, thereby increasing the structural stability and support force; the second bending part in the second bending body 2132 extends along the opening direction.

[0073] In implementation, the thickness of the second bending body 2132 is not specifically limited, as long as the second bending body 2132 is flush with the windshield 4 in height. The lengths of the second bending 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 bending body 2132 serves as a transition connection part between the second vertical body 2131 and the second bending body 2132, and the second through hole 214 formed by the second bending body 2132 and the first support body can increase compressibility and ensure sealing, which will not be elaborated here.

[0074] In a specific embodiment, a protrusion is provided on the contact surface of 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.

[0075] 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 the embodiment of the present invention; Figure 5 It is a schematic diagram of a first angle and a first height of an embodiment of the present invention;

[0076] Specifically, a two-dimensional rectangular coordinate system is constructed with the lateral 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:

[0077] The contact points of the second bending body 2132 and the first supporting portion 21 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, and the curve shape fitting formula of the first curved portion AB is Y1=log2x+sin(xc), where c is the lateral distance width between the first contact point and the Y axis;

[0078] 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 extending to half the thickness of the windshield 4 and contacting the outer side of the first support portion 21 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 Y2=log 1.5 x+cos(xw), w is the lateral distance width between the third contact point C and the Y axis.

[0079] It can be understood that the first curved portion AB is an inverted V shape, so the log function and the sine function are used to describe the shape of the first curved portion AB. Since the two-dimensional rectangular coordinate system takes 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, the sine function introduces the displacement c when describing the shape. Similarly, the second curved portion CD is an approximate s-shaped curve, so the log function and the trigonometric function are also used to describe it. At the same time, since the slope of the second curved portion CD is relatively high, the cosine function introduces the displacement w when describing the shape, and by adjusting the position of the function, it can better match the actual shape of the first curved portion AB and the second curved portion CD. The present invention also provides the curve shape formula of the second vertical body 2131 and the second bending portion of the second elastic body 213, including the first curved portion AB and the second curved portion CD, and each performs curve shape fitting, thereby providing a clear and specific framework for the shape design of the second elastic body 213.

[0080] The present invention also provides a curve shape fitting formula for the second vertical body 2131 and the second bending portion 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 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.

[0081] 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.

[0082] It is understandable that the second metal skeleton arranged obliquely can effectively enhance the support strength of the first support portion 21, resist forces and pressures from different directions, and help disperse stress. The first metal skeleton provides additional support for the clamping portion, and the third metal skeleton provides additional support for the fastening portion 1. The first metal skeleton and the third metal skeleton are an integrally formed structure, which helps to enhance the connection strength and overall stability of the clamping portion and the fastening portion 1, ensure the uniformity and stability of the entire clamping device during the force process, and further achieve tight sealing and stable installation of ventilation.

[0083] 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, are not easy to be damaged, ensure that the target object can be effectively supported and fixed, 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 repeated.

[0084] The present invention provides additional support for the first supporting part 21, the clamping part and the fastening part 1 through the obliquely arranged second metal skeleton, 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, and 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, thereby improving the reliability of the clamping device and extending the service life of the clamping device.

[0085] Specifically, the contact area between the second elastic body 213 and the first supporting body 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, the angles of the two bent edges of the second bending body 2132 of the second elastic body 213 are between 130° and 150°, and α is the angle between the planes sandwiched by the two front ends of the Y-shaped structure.

[0086] It can be understood that the contact area between the second elastomer 213 and the first support body 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 elastomer 213 and the first support body will decrease accordingly; conversely, when the size of the second through hole 214 decreases, the contact area between the second elastomer 213 and the first support body will increase. This design can ensure that the contact and support effect between the second elastomer 213 and the first support body is optimized by adjusting the size of the second through hole 214, thereby enhancing the stability and durability of the entire clamping part.

[0087] Secondly, the size of the second through hole 214 is positively correlated with the first angle α, which means that when the first angle α increases, that is, when the bending angle of the first support body increases, the size of the second through hole 214 will also increase accordingly; conversely, when the first angle α decreases, which 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 body, thereby affecting the elasticity and supporting effect of the second elastomer 213.

[0088] 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 second elastic body 213 and the first support body, the size of the second through hole 214, and the bending angle of the first support body, the stability and durability of the clip-on portion are optimized, thereby further 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 ventilation.

[0089] Specifically, the third metal skeleton 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.

[0090] Specifically, the contact point between the first bending body 2112 of the first elastic body 211 and the plug-in portion 32 is the fifth contact point E, 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, and the curve shape fitting formula of the third curved portion EF is Y3=sin(xs)+(xs) 2 , s is the lateral distance width between the fifth contact point E and the Y axis.

[0091] It can be understood that, since the two-dimensional rectangular coordinate system takes the horizontal direction of the outer side of the bottom of the snap-in 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, when the sine function and the quadratic function are used to describe the shape of the third curved part EF, the displacement S is introduced, and the positions of the sine function and the quadratic function are adjusted to better match the actual shape of the third curved part EF. The present invention provides a curve fitting formula of the third curved part EF formed by the first vertical body 2111 and the first bending part of the first elastic body 211, thereby providing a clear and specific framework for the shape design of the first elastic body 211.

[0092] 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 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.

[0093] 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:

[0094] The first length d is the length of the vertical portion of the clamping groove 22 close to the first supporting portion 21 and the fastening portion 1 .

[0095] It can be understood that the contact area between the first elastic body 211 and the snap-in 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-in 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-in groove 22 will increase. This design can ensure that the contact support effect between the first elastic body 211 and the snap-in 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-in groove 22.

[0096] Secondly, the size of the first through hole 212 is positively correlated with the length of the vertical portion of the snap-in groove 22 close to the first support portion 21 and the fastening portion 1 (the first length d), which means 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-in groove 22, thereby optimizing the contact support effect between the first elastomer 211 and the snap-in groove 22.

[0097] 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 211 and the clip-on groove 22, the size of the first through hole 212, and the first length d, it can ensure that the clip-on device has sufficient stability and durability, so that the clip-on device has a compact structure and is easy to install, thereby further 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.

[0098] Specifically, the first elastic body 211 and the first skeleton part 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 lateral distance width between the seventh contact point G and the Y axis;

[0099] Specifically, the outside of the barb structure of the first frame part has a point H, the contact point between the barb structure on the first frame 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 a fifth curved part, and the curve fitting formula of the fifth curved part HI is Y5=k*sin(x+v), v is half of the cross-sectional width of the first frame part, and k is the longitudinal distance width from H to the X-axis;

[0100] It can be understood 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 the shape. Since the fourth curved portion is located in the first quadrant, and since the two-dimensional rectangular coordinate system takes the lateral 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 at the same time. By adjusting the position of the sine function, it can better match 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, and provides a curve shape fitting formula for the hook 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.

[0101] 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 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 snap-on portion, improving the compressibility and elastic supporting capacity of the snap-on device, improving the overall strength and assembly effect, and achieving tight sealing and stable installation of the ventilation cover 31.

[0102] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A vehicle 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 ventilation cover plate, comprises a first frame portion of 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 is an I-shaped structure and is connected to the first frame portion and the clamping portion to form a closed first through hole; 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 comprises a second frame portion of a Y-shaped structure and a second elastic body arranged at a front end of the Y-shaped structure close to a side of the windshield, the second elastic body is an inverted U-shaped structure, the opening of the inverted U-shaped structure faces the first support portion, and a second through hole is formed at another front end of the Y-shaped structure of the second frame portion away from the windshield; The first frame part and the second frame part are fixedly connected to form a clamping groove with an opening, and the clamping groove is used to connect with the plug-in part of the ventilating cover plate, so that the clamping part is plugged into the clamping groove through the opening, the first frame part is connected to the surface of one side of the plug-in part of the ventilating cover plate, and the second elastic body and the second frame part are connected to the surface of the other side of the plug-in part of the ventilating cover plate, so that the opening is sealed and connected by the ventilating cover plate; The bottom end of the plug-in portion is a hook-shaped structure for hooking the first elastic body, and the first skeleton portion and the end portion where the first elastic body is connected to the plug-in portion have a barb structure for limiting the hook-shaped structure from coming out; 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 elastomer.

2. The automobile windshield clamping device according to claim 1, characterized in that: 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: 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 part; One end of the first bending body is hooked with the hook-shaped structure at the bottom of the plug-in portion, and the other end is connected with one end of the first vertical body.

3. The automobile windshield clamping device according to claim 2, characterized in that: 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 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, and the barb structure of the first bending body close to the plug-in part side 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, 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, and at least 1 / 5 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.

5. The automobile windshield clamping device according to claim 2, characterized in that: The second elastic body includes a second vertical body and a second bending body, and the second vertical body and the second bending body are an integrally formed structure, wherein: The second vertical body is arranged at the front end of the Y-shaped structure of the second frame part close to the windshield and is arranged perpendicular to the fastening part. The second vertical body extends to at least half of the thickness of the windshield and contacts 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 skeleton portion away from the glass.

6. The automobile windshield clamping device according to claim 3, characterized in that: A two-dimensional rectangular coordinate system is constructed with the lateral 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 of 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, and the curve shape fitting formula of the first curved portion AB is Y1=log2x+sin(xc), where c is the lateral 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 between the second vertical body extending to half the thickness of the windshield and contacting 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, and the curve shape fitting formula of the second curved portion CD is Y2=log 1.5 x+cos(xw), w is the lateral distance width between the third contact point C and the Y axis.

7. 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, and the third metal frame is connected to one end of the first metal frame to form an integral structure.

8. The automobile windshield clamping device according to claim 3, characterized in that: The contact area between the second elastic body and the first supporting body 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 bending 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.

9. The automobile windshield clamping device according to claim 1, 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.

10. The automobile windshield clamping device according to claim 5, 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 Y3=sin(xs)+(xs) 2 , s is the lateral 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 groove close to the first supporting portion and the fastening portion.

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