Vehicle glass lower clamping strip

Abstract

The invention relates to the technical field of vehicle glass clamping, in particular to a vehicle glass lower clamping strip which comprises a straight strip section, a special-shaped U-shaped groove, a first elastic piece and a second elastic piece, and the second elastic piece is provided with an assembly hole used for assisting in assembly of an opponent piece and a multifunctional protrusion capable of determining functions according to the shape of the opponent piece. The clamping strip body is attached to the side wall of the glass through the straight strip section, the special-shaped U-shaped groove is connected with the opponent piece in a clamped mode, the first elastic piece is matched to be attached to the bottom of the glass, and the second elastic piece assists in clamping of the opponent piece, so that the vehicle glass lower clamping strip can be stably attached to the glass and can be reliably connected with the opponent piece, stability and sealing performance after assembly are improved, and the service life of the vehicle glass lower clamping strip is prolonged. And by arranging the multifunctional protrusions, the assembly requirements of different opponent parts can be met, the single clamping strip can be suitable for opponent parts of different models at the same time, and the assembly universality is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle glass clamping, and in particular to a lower clamping strip for vehicle glass. Background Art

[0002] Currently, clip-on strips play a crucial role in automotive manufacturing, particularly in the matching and installation of grilles and windshields. This structure utilizes a metal framework within the clip, achieving dual connection functions: Firstly, the clip's barbed hooks securely engage the grille's clipping feet; secondly, the clip forms a reliable bond with the windshield using high-performance double-sided adhesive tape. This innovative design not only ensures a secure connection between components but also significantly enhances the overall vehicle's appearance, creating a more natural and fluid transition between components. The introduction of the metal framework effectively enhances the clip's structural strength, while the combined use of barbs and double-sided adhesive tape complements the advantages of mechanical fastening and chemical bonding.

[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] Currently, vehicle glass clips have a single selection of matching counterparts. Often, one type of clip is matched with one corresponding counterpart, resulting in poor assembly versatility. Summary of the Invention

[0005] To this end, the present invention provides a vehicle glass lower clip strip to overcome the problem in the prior art that vehicle glass clip strips have a single selection of matching counterparts, often one type of clip strip is matched with one corresponding counterpart, resulting in poor assembly versatility.

[0006] To achieve the above-mentioned purpose, the present invention provides a vehicle glass lower clip, comprising: The clamping strip body includes a straight strip section for fitting the glass side wall and a special-shaped U-shaped groove for clamping the counterpart; A first elastic member is used to fit with the bottom of the glass, and is located at the top of the side of the special-shaped U-shaped groove close to the straight segment. The first elastic member is provided with a first protrusion that assists in clamping with the counterpart; The second elastic member is used to assist the clamping of the opponent member. It is arranged inside the special-shaped U-shaped groove and fits with the inner wall of the special-shaped U-shaped groove close to the straight segment. The second elastic member is provided with an assembly hole for assisting the assembly of the opponent member and a multifunctional protrusion that determines the function according to the shape of the opponent member.

[0007] Furthermore, the special-shaped U-shaped groove includes: The first straight arm section has a straight arm engaging portion disposed on its upper portion for engaging with the counterpart; The second straight arm section is arranged below the first straight arm section and at a 90° angle to the first straight arm section. The special-shaped arm includes an interactive segment connected to the straight segment and an oblique arm segment for mounting the first elastic member.

[0008] Furthermore, a first straight line segment that fits with the first elastic member and a first variable line segment that avoids the bottom of the glass are provided on the right side of the oblique arm segment; A protruding block is provided on the left side of the oblique arm section, and a smooth transition is made from the top end of the oblique arm section to the protruding block; The top of the protruding block is used to match the first protruding portion, and the bottom is used to fit the second elastic member; The first variable line segment includes several straight lines and several curved lines.

[0009] Furthermore, the straight segment is parallel to the second straight arm segment and is higher than the second straight arm segment in a vertical direction.

[0010] Furthermore, the curvature of the upper and lower connection transitions between the interactive segment and the straight segment is different, wherein the ratio of the curvature of the transition between the upper surface connection of the interactive segment and the straight segment to the curvature of the transition between the lower surface connection is in the range of 1:(1.8-2.2).

[0011] Furthermore, a double-sided tape is provided between the straight segment and the glass side wall.

[0012] Furthermore, the first elastic member includes: a first fitting portion for fitting the first straight line segment; a second fitting portion for fitting onto the top of the special-shaped arm; a third fitting portion for fitting into a transition section between the top of the special-shaped arm and the protruding block; a first protrusion provided on one side of the third laminating portion; Wherein, the horizontal length of the left side of the first protrusion exceeds the protruding block.

[0013] Furthermore, a transition groove is provided between the third fitting portion and the second fitting portion for adjusting the shape of the components when the first protrusion engages with the opponent component.

[0014] Furthermore, the second elastic member includes: Multifunctional protrusions that determine their functions according to the shape of the opponent; An avoidance portion for assisting in fixing the hand piece, wherein the assembly hole is provided in the avoidance portion; A fitting surface fitted with the special-shaped U-shaped groove; The fitting surface includes a first fitting section fitted with the bottom of the protruding block, a second fitting section fitted with the left side of the interactive section, and a third fitting section fitted with the top of the second straight arm section.

[0015] Furthermore, a first fulcrum H1 is provided on the straight arm engaging portion, and the first fulcrum H1 is located at the lowest point of the straight arm engaging portion; The first protrusion is provided with a second fulcrum H2 for engaging with the second engaging portion of the counterpart, which is located at the intersection of the upward extension line of the left edge of the protrusion block and the first protrusion; The protruding block is provided with a third traction point H3 for engaging with the second engaging portion of the counterpart, and the third traction point H3 is located at a position where the distance between the second traction point H2 and the protruding block is the shortest.

[0016] Furthermore, the second elastic member is provided with a fourth force point H4, a fifth force point H5, and a sixth force point H6 for engaging with the counterpart member having the third engaging portion, wherein the fourth force point H4 is located at the bottom of the multifunctional protrusion, the fifth force point H5 is located on the avoidance portion, and the sixth force point H6 is located at the left end of the multifunctional protrusion; Based on the presence of a third engaging portion on the counterpiece, the third engaging portion engages with the multifunctional protrusion, the lower end of the third engaging portion squeezes the avoidance portion, the assembly hole contracts, the fifth force point H5 applies an oblique upward force to the third engaging portion, and the fourth force point H4 applies an oblique downward force to the third engaging portion; The third engaging portion squeezes the multifunctional protrusion so that the sixth force point H6 is in contact with the right side wall of the opponent member, and the sixth force point H6 provides a leftward force to the opponent member; The combined force of the forces provided by the fourth force point H4, the fifth force point H5 and the sixth force point H6 is directed toward the straight arm engaging portion.

[0017] Furthermore, the highest point of the multifunctional protrusion is used as the first deformation force point A, the intersection of the upper surface and the side surface of the multifunctional protrusion is used as the second deformation force point B, and the vertical coordinate is the vertical direction of the straight line of the second bonding segment and the horizontal coordinate is the left direction of the straight line of the third bonding segment. A rectangular coordinate system is established, and the coordinate expression of the curve segment AB is: , Where h is the distance from the first deformation point A to the horizontal coordinate, To determine the angle of the corresponding point at any point on the curve segment AB; Based on the absence of the third engaging portion on the opponent piece, the multifunctional protrusion is folded downward under the pressure of the opponent piece, the lower end of the opponent piece presses the avoidance portion, and the assembly hole shrinks; The opponent part squeezes the curved segment AB, with the first deformation fulcrum A serving as the deformation force vertex and the second deformation fulcrum B serving as the deformation force end point. The curved segment AB extrude the opponent part in the opposite direction, generating a rightward force, and the avoidance portion provides an oblique upward force to the opponent part.

[0018] Furthermore, the assembly hole is an elliptical through hole, and the ratio of its major axis to minor axis is in the range of 5:(3.5-4.8).

[0019] Furthermore, a multifunctional cavity is provided between the multifunctional protrusion and the avoidance portion, and the multifunctional cavity is provided with a first curved segment connected to the protruding hook at the bottom of the multifunctional protrusion and a second curved segment connected to the avoidance portion; The curvature radius of the second curved segment is greater than the curvature radius of the first curved segment and greater than the curvature radius of the bottom protruding hook.

[0020] Furthermore, the starting end of the protruding hook at the bottom of the multifunctional protrusion is C, and the ending end connected to the first curved segment is D. The coordinate expression of the curved segment CD is: , in, L is the distance from the lowest point of the bottom protruding hook to the first deformation point A, To determine the angle of the corresponding point at any point on the curve segment CD; The abscissa of the center of curvature of the first curved segment is the same as the abscissa of the first deformation force point A, and the ordinate is the same as the ordinate of the lowest point of the bottom protruding hook, and the curvature radius is 1.1-1.2 times the radius of the curved segment CD; The connection point between the first curved segment and the second curved segment is E, and the connection point between the second curved segment and the avoidance portion is G. The coordinate expression of curve segment EG is: , Where R is the radius of the curve segment CD, and m is the distance from the vertex on the left side of the multifunctional protrusion to the vertical axis.

[0021] Furthermore, the coordinates of the center of the elliptical through hole are (0.75s, 1.1s), where s is the distance from the connection point of the first curved segment and the second curved segment to the vertical coordinate.

[0022] Furthermore, the elliptical through hole is tilted in a rectangular coordinate system, and the slope of its major axis is k=(p÷2-q÷3) / (pq), Among them, p=2.5R,q=1.25L.

[0023] Furthermore, a first metal fixing bar is provided in the special-shaped arm, and a second metal fixing bar is provided in the first straight arm section, the second straight arm section and the straight bar section; soft material is provided at the bottom of the second straight arm section and the straight bar section, and reinforcing ribs are provided between the straight bar section and the soft material.

[0024] Compared with existing technologies, the present invention offers the following advantages: the straight section of the clip body adheres to the glass sidewall, the U-shaped groove engages the mating component, and the first elastic member adheres to the bottom of the glass, while the second elastic member assists in the engagement. This allows the clip under the vehicle glass to both firmly adhere to the glass and reliably connect to the mating component, improving stability and sealing after assembly. Furthermore, the provision of multifunctional protrusions can meet the assembly requirements of different mating components, allowing a single clip to be used with different models of mating components, greatly enhancing assembly versatility.

[0025] Furthermore, a first straight segment and a first variable-line segment are provided on the right side of the oblique arm section, and a protrusion is provided on the left side, with a smooth transition from the top end to the protrusion. The protrusion cooperates with the first and second elastic members, and the first variable-line segment adopts a combination of straight lines and curves. This structural design not only meets the requirements for fitting with the first and second elastic members, but also effectively avoids the bottom of the glass, improving the adaptability and assembly convenience of the clip. A transition groove is provided between the third fitting portion and the second fitting portion. When the first protrusion engages the counterpart, it can effectively adjust the component's shape to better adapt to changes in the shape and size of the counterpart, enhancing the versatility and adaptability of the clip.

[0026] Furthermore, the structural design of the multifunctional protrusion, avoidance portion, assembly hole and fitting surface of the second elastic part can realize different functions according to the different forms of the opponent parts, such as snap fixation, auxiliary assembly, etc., thereby improving the adaptability and versatility of the card strip to different opponent parts, while also ensuring the stability of the opponent parts after installation.

[0027] Furthermore, the assembly hole is set as an elliptical through hole in a specific ratio range. During the assembly process of the hand part, it can not only ensure the smooth insertion of the hand part, but also provide a certain elastic fastening force after the hand part is installed to prevent the hand part from loosening, thereby improving the reliability and stability of the assembly.

[0028] Furthermore, when the hand piece has a third engaging portion, the third engaging portion engages with the multifunctional protrusion, squeezing the avoidance portion on the lower end of the hand piece to shrink the assembly hole. This structural design realizes multiple fixations of the hand piece and enhances the connection firmness of the hand piece. At the same time, by squeezing the avoidance portion, the avoidance portion forms a directional thrust on the third engaging portion, further enhancing the connection firmness of the hand piece and improving the stability of the overall structure.

[0029] Furthermore, when the third engaging portion does not exist on the opponent piece, the multifunctional protrusion folds downward under the pressure of the opponent piece, and squeezes the avoidance portion at the lower end of the opponent piece to shrink the assembly hole, ensuring that the card strip can be reliably assembled and fixed under different opponent piece conditions, improving the versatility and applicability of the card strip, and for the opponent piece without the third engaging portion, the folding of the multifunctional protrusion and the squeezing of the avoidance portion enhance the reaction force of the second elastic piece on the opponent piece, and the direction of the reaction force is regulated by setting the elliptical hole, so that the opponent piece and the straight arm engaging portion fit more closely, ensuring that the opponent piece can be well fixed even if one engaging portion is missing, enhancing the connection firmness of the opponent piece, and improving the stability of the overall structure.

[0030] Furthermore, by establishing a rectangular coordinate system and giving a coordinate expression for the curve segment A-B, the shape of the multifunctional protrusion is precisely designed so that it can reasonably deform when subjected to force, thereby ensuring effective engagement and fixation of the hand piece. Through the larger curvature radius of the upper surface of the multifunctional protrusion, when there is no third engaging portion, the deformation of the hand piece during the downward pressing process can be smooth and the fit after engagement can be tight. At the same time, when the third engaging portion is present, the larger curvature radius makes the force uniform when engaging the hand piece, thereby improving the versatility and applicability of the card strip, enhancing the connection firmness of the hand piece, and improving the stability of the overall structure.

[0031] Furthermore, curve segments C-D, the first curve segment, and curve segments E-G are given. The coordinate expression of the multifunctional cavity and the curvature relationship of each curve segment are used to accurately control the shape and size of the multifunctional cavity, further optimize the elastic deformation performance of the multifunctional protrusion, ensure stable engagement and fixation of the counterpart, and improve the overall performance and reliability of the card strip. Among them, for the protruding hook at the bottom of the multifunctional protrusion, it serves as the main engagement component when the third engagement portion is present. When the distance between its bottom and the top is greater, it means that the third engagement portion of the counterpart to be engaged is larger. At this time, the radius range of the protruding hook at the bottom is increased to ensure the fixation of the third engagement portion. For the curvature radius of the first curve segment, it serves as the deformation segment when the third engagement portion is present and the folding portion when the third engagement portion does not exist. Its radius changes together with the protruding hook at the bottom, which not only ensures rapid fixation when the third engagement portion is present, but also ensures the folding deformation limit when the third engagement portion does not exist, thereby improving the versatility and applicability of the card strip. For the second curve segment, its curvature radius is related to the radius of the curve segment CD, which ensures the folding deformation limit when the third engagement portion does not exist. The three curve segments are mutually related, which further improves the versatility and applicability of the card strip, strengthens the connection firmness with the counterpart, and improves the stability of the overall structure.

[0032] Furthermore, the coordinates of the center position of the ellipse are determined so that the position of the assembly hole can better match the other structures of the clip, ensuring the precise positioning and stable installation of the hand piece during the assembly process, improving the accuracy and reliability of the assembly, and giving the calculation formula for the slope of the major axis of the ellipse. The inclination angle of the assembly hole is optimized to make it fit more closely and reasonably with the hand piece, further improving the installation stability of the hand piece and the overall performance of the clip. At the same time, by limiting the slope of the ellipse, the direction of the force exerted by the second elastic part on the hand piece is adjusted, thereby enhancing the connection firmness of the hand piece and improving the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the structure of the lower clip strip of the vehicle glass in the embodiment; Figure 2 This is a schematic diagram of the assembly structure when the third engaging portion is present in the embodiment; Figure 3 This is a schematic diagram of the assembly structure when the third engaging portion is not present in the embodiment; Figure 4 This is a schematic structural diagram of the first elastic member in the embodiment; Figure 5 2 is a schematic structural diagram of the second elastic member in the embodiment; Figure 6 Schematic diagram of the point distribution of the second elastic member in a rectangular coordinate system in the embodiment; Figure 7Schematic diagram of the force applied to the opponent when the third engaging portion is present in the embodiment; Figure 8 Schematic diagram of the force applied to the opponent when the third engaging portion is not present in the embodiment; Figure 9 In the embodiment Figure 7 A partial enlarged view of the force situation of the middle and hand parts; Figure 10 In the embodiment Figure 8 A partial enlarged view of the force conditions on the middle and opposite parts. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] See also Figure 1 As shown, Figure 1 Schematic diagram of the structure of the lower clip strip of the vehicle glass in the embodiment.

[0039] The present invention provides a vehicle glass lower clip, comprising: The clamping strip body includes a straight strip section 1 for fitting against the side wall of the glass 7 and a special-shaped U-shaped groove 4 for clamping against the counterpart; The first elastic member 2 is used to fit with the bottom of the glass 7. It is located at the top of the U-shaped groove 4 near the straight segment 1. The first elastic member 2 is provided with a first protrusion 21 to assist in the clamping of the counterpart; The second elastic member 3 is used to assist the clamping of the opponent member. It is arranged inside the special-shaped U-shaped groove 4 and fits with the inner wall of the special-shaped U-shaped groove 4 on the side close to the straight segment 1. The second elastic member 3 is provided with an assembly hole 31 for assisting the assembly of the opponent member and a multifunctional protrusion 32 whose function is determined according to the shape of the opponent member.

[0040] The main body of the clip is bonded to the glass sidewall through a straight section, and the special U-shaped groove engages the counterpart. The first elastic member adheres to the bottom of the glass, and the second elastic member assists in the engagement of the counterpart. This ensures that the clip under the vehicle glass not only adheres firmly to the glass but also reliably connects to the counterpart, improving stability and sealing after assembly. Furthermore, the multifunctional protrusions can meet the assembly requirements of different counterparts, allowing a single clip to be used with different counterparts, greatly improving assembly versatility.

[0041] Specifically, the special-shaped U-shaped groove 4 includes: The first straight arm section 41 has a straight arm engaging portion 411 disposed on its upper portion for engaging with the counterpart; The second straight arm section 42 is arranged below the first straight arm section 41 and is at a 90° angle to the first straight arm section 41. The special-shaped arm includes an interactive segment 43 connected to the straight segment 1 and an oblique arm segment 44 for mounting the first elastic member 2 .

[0042] The second straight arm section 42 is arranged at a 90° perpendicular angle to the first straight arm section 41, which not only provides a stable support frame for the special-shaped U-shaped groove 4, making the main body of the clip more structurally solid and able to withstand the vibration and impact during vehicle driving, but also this vertical layout provides a reasonable spatial position for the installation and matching of the first elastic member 2 and the second elastic member 3. As an important component of the special-shaped U-shaped groove 4, the second straight arm section 42 and its vertical connection with the first straight arm section 41 ensure that the special-shaped U-shaped groove 4 can form an effective clamping cavity, thereby reliably wrapping and clamping the opponent, further enhancing the firmness of the connection to the opponent. At the same time, this precise angle design is also conducive to rapid positioning during the assembly process, improving assembly efficiency, and facilitating the control of the overall size of the clip, so that the clip can better adapt to the installation space under the vehicle glass, improving the compactness and coordination of the overall structure.

[0043] Specifically, the right side of the oblique arm section 44 is provided with a first straight line section 442 that fits with the first elastic member 2 and a first variable line section 443 that avoids the bottom of the glass; A protruding block 441 is provided on the left side of the oblique arm section 44, and a smooth transition is formed between the top of the oblique arm section 44 and the protruding block 441; The top of the protruding block 441 is used to fit the first protruding portion 21, and the bottom is used to fit the second elastic member 3; The first variable line segment 443 includes several straight lines and several curved lines.

[0044] A first straight line segment and a first variable line segment are set on the right side of the oblique arm section, and a protruding block is set on the left side, and there is a smooth transition from the top to the protruding block. The protruding block cooperates with the first elastic member and the second elastic member, and the first variable line segment adopts a combination of straight lines and curves. This structural design not only meets the fitting requirements with the first elastic member and the second elastic member, but can also effectively avoid the bottom of the glass, thereby improving the adaptability and assembly convenience of the card strip.

[0045] Specifically, the straight segment 1 is parallel to the second straight arm segment 42 and is higher than the second straight arm segment 42 in the vertical direction.

[0046] Specifically, the curvature of the upper and lower connection transitions between the interactive segment 43 and the straight segment 1 is different, wherein the ratio of the curvature of the transition between the upper surface connection of the interactive segment 43 and the straight segment 1 to the curvature of the transition between the lower surface connection is in the range of 1:(1.8-2.2).

[0047] Specifically, a double-sided tape 6 is provided between the straight segment 1 and the glass side wall.

[0048] Double-sided tape is used to tightly adhere the straight strip to the glass sidewall, significantly improving the connection strength and sealing between the clip and the glass. This effectively prevents rain, dust, and other impurities from entering the vehicle through the gap, while also reducing friction noise caused by vibration between the clip and the glass during driving. The straight strip is parallel to the second straight arm segment and vertically higher than the second straight arm segment, giving the strip an optimal angle of force when attached to the glass sidewall. This helps better resist lateral forces during driving, prevents the clip from shifting or loosening, and further ensures the secure connection between the clip and the glass. The upper and lower transitions between the interactive segments and the straight segments feature different curvatures, with the ratio of the curvature of the upper surface transition to the lower surface transition ranging from 1:(1.8-2.2). This asymmetric curvature transition structure ensures connection strength while reducing stress concentration. When the clip body is subjected to external forces, the stress is effectively dispersed through the curvature transition of the interactive segments, preventing breakage or damage at the connection and extending the clip's service life. Furthermore, this curvature ratio range, validated through extensive experimentation, is the optimal choice. It meets the overall flexibility requirements of the clip, ensuring smooth integration with the glass and the counterpart during assembly, while also preventing excessive flexibility that could compromise structural stability. This achieves a good balance between structural strength, flexibility, and ease of assembly.

[0049] See also Figure 4 As shown, Figure 4 This is a structural diagram of the first elastic member in the embodiment; the first elastic member 2 includes: A first fitting portion 22 for fitting the first straight line segment 442; A second fitting portion 23 for fitting onto the top of the special-shaped arm; A third fitting portion 24 for fitting into the transition section between the top of the special-shaped arm and the protruding block 441; A first protrusion 21 provided on one side of the third fitting portion 24; The horizontal length of the left side of the first protrusion 21 exceeds the protruding block 441 .

[0050] The first elastic member is tightly fitted to the first straight segment via the first fitting portion, the second fitting portion fits the top of the special-shaped arm, and the third fitting portion fits the transition section between the top of the special-shaped arm and the protrusion. This multi-part fitting design ensures the secure installation of the first elastic member on the clamping strip body, preventing it from shifting or falling off during vehicle travel. The design of the left side of the first protrusion extending beyond the protrusion allows it to contact the counterpart in advance during the clamping process, playing a guiding and pre-positioning role, assisting the counterpart in smoothly entering the clamping position and improving the convenience and accuracy of assembly. At the same time, the contact between the first protrusion and the counterpart can also increase the friction between the two, further enhancing the stability of the counterpart after clamping, preventing the counterpart from loosening under vibration and other working conditions, thereby improving the overall assembly reliability of the vehicle's lower glass clamping strip.

[0051] Specifically, a transition groove 25 is provided between the third fitting portion 24 and the second fitting portion 23 for adjusting the shape of the components when the first protrusion 21 is engaged with the counterpart.

[0052] A transition groove is provided between the third fitting portion and the second fitting portion. When the first protrusion engages with the counterpart, the shape of the component can be effectively adjusted to better adapt to the shape and size changes of the counterpart, thereby enhancing the versatility and adaptability of the card strip.

[0053] See also Figure 5 As shown, Figure 5 The schematic diagram of the structure of the second elastic member in the embodiment; the second elastic member 3 includes: A multifunctional protrusion 32 that determines its function according to the shape of the hand piece; An avoidance portion 33 for assisting in fixing the hand piece, wherein the assembly hole 31 is provided in the avoidance portion 33; A fitting surface 34 fitted with the special-shaped U-shaped groove 4; The fitting surface 34 includes a first fitting section fitted with the bottom of the protruding block 441 , a second fitting section fitted with the left side of the interactive section 43 , and a third fitting section fitted with the top of the second straight arm section 42 .

[0054] The structural design of the multifunctional protrusion, avoidance part, assembly hole and fitting surface of the second elastic part can realize different functions according to the different shapes of the opponent parts, including snap fixation and auxiliary assembly, which improves the adaptability and versatility of the card strip to different opponent parts, and also ensures the stability of the opponent parts after installation.

[0055] Specifically, the assembly hole 31 is an elliptical through hole, and the ratio of its major axis to minor axis is in the range of 5:(3.5-4.8).

[0056] The assembly hole is set as an elliptical through hole of a specific shape. During the assembly process of the hand part, it can not only ensure the smooth insertion of the hand part, but also provide a certain elastic fastening force after the hand part is installed to prevent the hand part from loosening, thereby improving the reliability and stability of the assembly.

[0057] A first fulcrum H1 is provided on the straight arm engaging portion, and the first fulcrum H1 is located at the lowest point of the straight arm engaging portion; The first protrusion is provided with a second fulcrum H2 for engaging with the second engaging portion T2 of the counterpart, which is located at the intersection of the upward extension line of the left edge of the protrusion block and the first protrusion; The protruding block is provided with a third traction point H3 for engaging with the second engaging portion T2 of the counterpart, and is located at a position where the distance between the second traction point H2 and the protruding block is the shortest.

[0058] When the opponent is engaged, the first protrusion engages with the upper edge of the second engaging portion T2 of the opponent, and the second force point H2 applies a downward, oblique, and leftward force F3 to the opponent. The protruding block engages with the lower edge of the second engaging portion T2, and the third force point H3 applies an upward, oblique, and leftward force F4 to the opponent. The first protrusion and the protruding block act together to produce a combined force Fz2 that is approximately horizontal and leftward, maintaining the stability of the opponent in the vertical direction. The first engaging portion T1 of the opponent engages with the straight arm engaging portion, and the first force point H1 applies a downward, oblique, and rightward force F6 to the first engaging portion T1. The second engaging portion T2 is subjected to a force to the left as a whole, and the first engaging portion T1 is subjected to a force to the right that is downward, oblique, and rightward. The first force point H1, the second force point H2, and the third force point H3 act together to ensure the stability of the engagement.

[0059] See also Figure 2 、 Figure 7 and Figure 9 As shown, Figure 2 This is a schematic diagram of the assembly structure when the third engaging portion is present in the embodiment; Figure 7 This is a schematic diagram of the force applied to the opponent when the third engaging portion is present in the embodiment. Figure 9 In the embodiment Figure 7 A partial enlarged view of the force conditions on the middle and opposite parts.

[0060] The second elastic member is provided with a fourth force point H4, a fifth force point H5, and a sixth force point H6 for contacting with the counterpart member having the third engaging portion T3. The fourth force point H4 is located at the bottom of the multifunctional protrusion, the fifth force point H5 is located on the avoidance portion, and the sixth force point H6 is located at the left end of the multifunctional protrusion. Because the counterpiece has a third engaging portion T3, which engages with the multifunctional protrusion 32, the lower end of the third engaging portion T3 presses against the avoidance portion 33, causing the assembly hole 31 to shrink. The fifth force point H5 applies an upward force F2 to the third engaging portion T3, and the fourth force point H4 applies a downward force F1 to the third engaging portion T3. The third engaging portion T3 squeezes the multifunctional protrusion so that the sixth force point H6 is in contact with the right side wall of the opponent member, and the sixth force point H6 provides a leftward force F5 to the opponent member; A resultant force Fz1 of the forces provided by the fourth force point H4, the fifth force point H5 and the sixth force point H6 is directed toward the straight arm engaging portion.

[0061] When the hand piece has a third engaging portion T3, the third engaging portion T3 engages with the multifunctional protrusion, and squeezes the avoidance portion at the lower end of the hand piece to shrink the assembly hole. This structural design realizes multiple fixations of the hand piece and enhances the connection firmness of the hand piece. At the same time, by squeezing the avoidance portion, the avoidance portion forms a directional thrust on the third engaging portion T3, further enhancing the connection firmness of the hand piece and improving the stability of the overall structure. At the same time, the combined force provided by the fourth fulcrum H4, the fifth fulcrum H5 and the sixth fulcrum H6 points to the straight arm engaging portion, the first protrusion is in contact with the upper edge of the second engaging portion T2 of the hand piece, the second fulcrum H2 provides a downward and leftward force to the hand piece, the protruding block is in contact with the lower edge of the second engaging portion T2, and the sixth fulcrum H6 is in contact with the third engaging portion T3. The three fulcrums H3 provide an upward and oblique leftward force to the opponent part, the first fulcrum H1 provides a downward and oblique rightward force to the first engaging part T1, the first protrusion and the protrusion block work together to generate a resultant force that is approximately horizontal to the left, the resultant force provided by the fourth fulcrum H4, the fifth fulcrum H5 and the sixth fulcrum H6 points to the straight arm engaging part, and the first fulcrum H1 provides a downward and oblique rightward force to the first engaging part T1. The overall engagement with the opponent part can ensure both horizontal and vertical force balance, thereby ensuring the stability of the engagement. At the same time, based on the compression of the assembly hole, the deformation of the second elastic part during the engagement with the opponent part is reduced, thereby ensuring the rebound of the elastic part after subsequent disassembly and increasing its service life.

[0062] See also Figure 3 、 Figure 6 、 Figure 8 and Figure 10 As shown, Figure 3 This is a schematic diagram of the assembly structure when the third engaging portion T3 is not present in the embodiment; Figure 6 Schematic diagram of the point distribution of the second elastic member in the rectangular coordinate system in the embodiment, Figure 8Schematic diagram of the force on the opponent when the third engaging portion is not present in the embodiment; Figure 10 In the embodiment Figure 8 A partial enlarged view of the force conditions on the middle and opposite parts.

[0063] The highest point of the multifunctional protrusion is used as the first deformation force point A, and the intersection of the upper surface and the side surface of the multifunctional protrusion is used as the second deformation force point B. The vertical coordinate is the upward direction of the straight line of the second bonding segment, and the horizontal coordinate is the leftward direction of the straight line where the third bonding segment is located. A rectangular coordinate system is established, and the coordinate expression of the curve segment AB is: , Where h is the distance from the first deformation point A to the horizontal coordinate, To determine the angle of the corresponding point at any point on the curve segment AB; Since the third engaging portion T3 does not exist on the counterpart, the multifunctional protrusion 32 is folded downward under the pressure of the counterpart, and the lower end of the counterpart presses the avoidance portion 33 , and the assembly hole 31 shrinks.

[0064] The opponent part squeezes the curved segment AB, with the first deformation fulcrum A serving as the deformation force vertex and the second deformation fulcrum B serving as the deformation force end point. The curved segment AB extrude the opponent part in the opposite direction, generating a rightward force F7, and the avoidance portion provides an oblique upward force F8 to the opponent part.

[0065] When the third engaging portion T3 does not exist on the opponent piece, the multifunctional protrusion folds downward under the pressure of the opponent piece, and the avoidance portion is squeezed at the lower end of the opponent piece to shrink the assembly hole, ensuring that the card strip can be reliably assembled and fixed under different opponent piece conditions, improving the versatility and applicability of the card strip, and for the opponent piece that does not have the third engaging portion T3, the folding of the multifunctional protrusion and the squeezing of the avoidance portion enhance the reaction force of the second elastic piece on the opponent piece, and the direction of the reaction force is regulated by setting an elliptical through hole, so that the opponent piece and the straight arm engaging portion fit more closely, ensuring that the opponent piece can be well fixed even if one engaging portion is missing, enhancing the connection firmness of the opponent piece, and improving the stability of the overall structure.

[0066] By establishing a rectangular coordinate system and giving a coordinate expression for the curve segment AB, the shape of the multifunctional protrusion is precisely designed so that it can reasonably deform when subjected to force, ensuring effective engagement and fixation of the hand piece. The larger curvature radius of the upper surface of the multifunctional protrusion can ensure that when the third engaging portion T3 is not present, the deformation of the hand piece during the downward pressing process is smooth and the fit is tight after engagement. At the same time, when the third engaging portion T3 is present, the larger curvature radius makes the force uniform when engaging the hand piece, thereby improving the versatility and applicability of the card strip, enhancing the connection firmness of the hand piece, and improving the stability of the overall structure. The curve segment AB is an arc with a larger radius. When the hand piece is gradually fitted, the hand piece first touches the first deformation force point A and is squeezed downward. As the degree of extrusion increases, the contact area between the curve segment AB and the hand piece gradually increases until the second deformation force point B fits the hand piece. This progressive fitting process makes the deformation of the multifunctional protrusion more uniform, avoids stress concentration, and extends the service life of the second elastic member. Furthermore, the precise setting of the angle θ1 (60° to 70.5°) and the coefficient 1.6h in the coordinate expression of curve segment AB ensures that the multifunctional protrusion generates an appropriate reverse extrusion force during the folding process, ensuring effective fastening of the handpiece without damaging the handpiece or the clip itself due to excessive extrusion. Furthermore, the elliptical through-hole, designed within a specific ratio range (major axis to minor axis ratio range of 5:(3.5-4.8)), not only ensures smooth insertion of the handpiece during assembly but also provides a certain elastic tightening force to prevent loosening after installation. During the engagement and disassembly of the handpiece, the clip and elastic member are subjected to forces of various directions and magnitudes. Compared to circular holes, elliptical holes better adapt to the distribution of these forces, avoiding stress concentration at a single point. This reduces the risk of fatigue damage and cracking caused by stress concentration, significantly improving the service life of the clip and elastic member. The elliptical hole also provides a guiding effect during the insertion of the handpiece. When inserting a handpiece into the assembly hole, the oval's long axis provides a relatively wide insertion space, facilitating initial positioning and insertion. The short axis, on the other hand, provides a certain degree of restraint and tightening force after insertion, ensuring stability during the engagement process. This dual role of guidance and restraint makes the assembly process smoother, reduces errors and adjustments, and improves assembly efficiency and quality.

[0067] Specifically, a multifunctional cavity 35 is provided between the multifunctional protrusion 32 and the avoidance portion 33. The multifunctional cavity 35 is provided with a first curved segment connected to the protruding hook at the bottom of the multifunctional protrusion 32 and a second curved segment connected to the avoidance portion 33. The curvature radius of the second curved segment is greater than the curvature radius of the first curved segment and greater than the curvature radius of the bottom protruding hook.

[0068] A multifunctional cavity is set between the multifunctional protrusion and the avoidance portion, and the curvature radius of each curved segment is reasonably designed so that the multifunctional protrusion can better undergo elastic deformation when subjected to force, including when the third engaging portion T3 is present, the radius of the interior of the multifunctional cavity is slightly larger than the radius of the bottom protruding hook, so that the third engaging portion T3 can be quickly engaged, and when the third engaging portion T3 is present, the radius of the interior of the multifunctional cavity is slightly larger than the radius of the bottom protruding hook, so that the multifunctional protrusion can be folded with less hindrance during the folding process, and the deformation after folding is well controlled, thereby further improving the versatility and applicability of the card strip, enhancing the connection firmness to the hand piece, and improving the stability of the overall structure.

[0069] Specifically, the starting end of the protruding hook at the bottom of the multifunctional protrusion is C, and the ending end connected to the first curved segment is D. The coordinate expression of the curved segment CD is: , in, L is the distance from the lowest point of the bottom protruding hook to the first deformation point A, To determine the angle of the corresponding point at any point on the curve segment CD; The abscissa of the center of curvature of the first curved segment is the same as the abscissa of the first deformation force point A, and the ordinate is the same as the ordinate of the lowest point of the bottom protruding hook, and the curvature radius is 1.1-1.2 times the radius of the curved segment CD; The connection point between the first curved segment and the second curved segment is E, and the connection point between the second curved segment and the avoidance portion is G. The coordinate expression of curve segment EG is: , Where R is the radius of the curve segment CD, and m is the distance from the vertex on the left side of the multifunctional protrusion to the vertical axis.

[0070] The coordinate expressions of curve segments CD and EG, as well as the curvature relationship of each curve segment, are given to accurately control the shape and size of the multifunctional cavity, further optimize the elastic deformation performance of the multifunctional protrusion, ensure stable engagement and fixation of the counterpart, and improve the overall performance and reliability of the card strip. Among them, the protruding hook at the bottom of the multifunctional protrusion serves as the main engagement component when the third engagement part T3 exists. The greater the distance between its bottom and the top, the larger the third engagement part T3 of the counterpart to be engaged. At this time, the radius range of the bottom protruding hook is increased to ensure the fixation of the third engagement part T3. The design of the multifunctional cavity also takes into account the adaptability of the card strip to different counterparts, ensuring that reliable engagement and fixation can be achieved through reasonable elastic deformation when the third engagement part T3 of the counterpart exists or not, further improving the mechanical performance of the card strip under different working conditions. The curvature radius of the first curved segment, which serves as the deformation section when the third engaging portion T3 is present and the folding point when the third engaging portion T3 is absent, varies with the bottom protruding hook. This ensures both rapid fixation when the third engaging portion T3 is present and limited folding deformation when the third engaging portion T3 is absent, thus improving the versatility and applicability of the clip. The curvature radius of the second curved segment is correlated with the radius of the curved segment CD, ensuring limited folding deformation when the third engaging portion T3 is absent. These three interrelated curved limits further enhance the versatility and applicability of the clip, strengthen the connection security with the counterpart, and improve the stability of the overall structure.

[0071] The coordinate expressions for curve segments CD and EG, as well as the curvature relationships between these segments, are crucial for ensuring the mechanical properties of the clip under various operating conditions. During the engagement of the counterpiece with the clip, the forces acting on the bottom hook of the multifunctional protrusion are complex. When the counterpiece includes a third engaging portion, this portion exerts a significant compressive force on the bottom hook, subjecting the hook to significant localized stress. By precisely controlling the coordinate expressions and curvature radius of curve segment CD, the bottom hook can evenly distribute stress to the surrounding structure when subjected to significant pressure, avoiding localized damage caused by stress concentration. For example, the specified range of angle θ2 (215° to 347°) and coefficient (L / 3.6) in curve segment CD ensure that the bottom hook undergoes appropriate elastic deformation when subjected to force, ensuring a tight engagement with the third engaging portion without losing its elastic recovery capacity due to excessive deformation.

[0072] The design of the specific relationship between the center of curvature and radius of the first curved segment and the bottom protruding hook is also based on mechanical requirements. When the bottom protruding hook is deformed under force, the first curved segment can provide stable support and constraint to prevent the bottom protruding hook from excessive displacement or irreversible deformation. Its curvature radius is 1.1 to 1.2 times the radius of the curved segment CD. This proportional relationship enables the first curved segment to share part of the stress in time when the bottom protruding hook is under force, and in the process of overall deformation of the multifunctional protrusion, it cooperates with the bottom protruding hook to maintain the overall structural stability of the multifunctional cavity and ensure the stability of the mechanical properties of the card strip during the locking process.

[0073] The coordinate expression and curvature design of curved segment EG play a key transition and buffering role in mechanical performance. When the handpiece engages the clamping strip, the avoidance portion is subjected to the compressive force of the handpiece. Curved segment EG connects the avoidance portion and the first curved segment, gradually transferring and distributing the force acting on the avoidance portion to the entire multifunctional cavity structure. The associated setting of the x value range (1.5R to L) and the curvature radius R in its coordinate expression ensures that curved segment EG provides appropriate elastic support under different force conditions, preventing damage to the avoidance portion or the multifunctional cavity structure due to excessive force. Furthermore, during the disassembly of the handpiece, curved segment EG can quickly return to its original state, providing a reliable mechanical foundation for the next engagement operation.

[0074] The spatial design of the multifunctional cavity 35 and the coordination of its various curved segments ensure the overall coordination of the mechanical properties of the card strip. During the engagement and disassembly of the handpiece, the card strip must withstand forces from various directions and magnitudes. The presence of the multifunctional cavity enables the various structural components to deform synergistically, coping with complex mechanical environments. By rationally designing the curvature radius and coordinate expressions of each curved segment, the multifunctional cavity forms a stable mechanical transmission path when subjected to force, evenly distributing stress throughout the entire card strip structure. This avoids material fatigue and damage caused by localized stress concentration, thereby improving the mechanical reliability and service life of the card strip.

[0075] Specifically, the coordinates of the center of the elliptical through hole are (0.75s, 1.1s), where s is the distance from the connection point of the first curved segment and the second curved segment to the vertical axis.

[0076] Specifically, the elliptical through hole is tilted in a rectangular coordinate system, and the slope of its major axis is: k=(p÷2-q÷3) / (pq), where p=2.5R,q=1.25L.

[0077] Determining the coordinates of the ellipse's center position allows the assembly hole to better align with the rest of the clip strip's structure, ensuring precise positioning and stable installation of the accessory during assembly. This improves assembly accuracy and reliability. A formula for calculating the slope of the ellipse's major axis is provided, optimizing the assembly hole's inclination angle for a tighter and more precise fit with the accessory, further enhancing the accessory's installation stability and the clip strip's overall performance. Furthermore, by limiting the ellipse's slope, the direction of the force exerted by the second elastic member on the accessory is adjusted, strengthening the accessory's connection and improving overall structural stability. The coordinates of the elliptical through-hole's center position are determined to be (0.75s, 1.1s), where s is the distance from the connection point of the first and second curved segments to the ordinate axis. This arrangement ensures that the assembly hole's position aligns with the rest of the clip strip's structure. During the accessory assembly process, the precise center position provides a clear guide for insertion, ensuring that the accessory follows the intended path during insertion, thereby achieving precise positioning. This facilitates accurate engagement of the handpiece with the various parts of the clip, avoiding assembly difficulties or loose engagement due to positional deviations, and improving assembly accuracy and reliability. The formula for calculating the slope of the ellipse's major axis is k = (p ÷ 2 - q ÷ 3) / (pq), where p = 2.5R and q = 1.25L. This formula can be used to optimize the inclination angle of the assembly hole for a tighter and more appropriate fit with the handpiece. Different handpieces may differ in shape, size, and installation method. An appropriate ellipse's major axis slope can better adapt to the characteristics of the handpiece, ensuring a tighter fit between the handpiece and the clip after insertion into the assembly hole, thereby improving the handpiece's installation stability.

[0078] Specifically, a first metal fixing bar is provided in the special-shaped arm, and a second metal fixing bar is provided in the first straight arm section, the second straight arm section and the straight bar section; soft material is provided at the bottom of the second straight arm section and the straight bar section, and reinforcing ribs are provided between the straight bar section and the soft material.

[0079] 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 vehicle glass lower clip, characterized in that: include, The clamping strip body includes a straight strip section for fitting the glass side wall and a special-shaped U-shaped groove for clamping the counterpart; A first elastic member is used to fit with the bottom of the glass, and is located at the top of the side of the special-shaped U-shaped groove close to the straight segment. The first elastic member is provided with a first protrusion that assists in clamping with the counterpart; The second elastic member is used to assist the clamping of the opponent member. It is arranged inside the special-shaped U-shaped groove and fits with the inner wall of the special-shaped U-shaped groove close to the straight segment. The second elastic member is provided with an assembly hole for assisting the assembly of the opponent member and a multifunctional protrusion that determines the function according to the shape of the opponent member.

2. The vehicle glass lower clip according to claim 1, characterized in that: The special-shaped U-shaped groove includes: The first straight arm section has a straight arm engaging portion disposed on its upper portion for engaging with the counterpart; a second straight arm section, which is arranged below the first straight arm section and is at 90 degrees to the first straight arm section; The special-shaped arm includes an interactive segment connected to the straight segment and an oblique arm segment for mounting the first elastic member.

3. The vehicle glass lower clip according to claim 2, characterized in that: The right side of the oblique arm section is provided with a first straight line section that fits with the first elastic member and a first variable line section that avoids the bottom of the glass; A protruding block is provided on the left side of the oblique arm section, and a smooth transition is made from the top end of the oblique arm section to the protruding block; The top of the protruding block is used to match the first protruding portion, and the bottom is used to fit the second elastic member; The first variable line segment includes several straight lines and several curved lines.

4. The vehicle glass lower clip according to claim 2, characterized in that: The straight segment is parallel to the second straight arm segment and is vertically higher than the second straight arm segment.

5. The vehicle glass lower clip according to claim 4, characterized in that: The curvature of the upper and lower connection transitions between the interactive segment and the straight segment is different, wherein the ratio of the curvature of the transition between the upper surface connection of the interactive segment and the straight segment to the curvature of the transition between the lower surface connection is in the range of 1:(1.8-2.2).

6. The vehicle glass lower clip according to claim 1, characterized in that: A double-sided adhesive tape is provided between the straight strip segment and the glass side wall.

7. The vehicle glass lower clip according to claim 3, characterized in that: The first elastic member includes: a first fitting portion for fitting the first straight line segment; a second fitting portion for fitting onto the top of the special-shaped arm; a third fitting portion for fitting into a transition section between the top of the special-shaped arm and the protruding block; a first protrusion provided on one side of the third laminating portion; Wherein, the horizontal length of the left side of the first protrusion exceeds the protruding block.

8. The vehicle glass lower clip according to claim 7, characterized in that: A transition groove is provided between the third fitting portion and the second fitting portion for adjusting the shape of the components when the first protrusion is engaged with the opponent component.

9. The vehicle glass lower clip according to claim 8, characterized in that: The second elastic member includes: The multifunctional protrusion; An avoidance portion for assisting in fixing the hand piece, wherein the assembly hole is provided in the avoidance portion; A fitting surface fitted with the special-shaped U-shaped groove; The fitting surface includes a first fitting section fitted with the bottom of the protruding block, a second fitting section fitted with the left side of the interactive section, and a third fitting section fitted with the top of the second straight arm section.

10. The vehicle glass lower clip according to claim 9, characterized in that: A first fulcrum H1 is provided on the straight arm engaging portion, and the first fulcrum H1 is located at the lowest point of the straight arm engaging portion; The first protrusion is provided with a second fulcrum H2 for engaging with the second engaging portion of the counterpart, which is located at the intersection of the upward extension line of the left edge of the protrusion block and the first protrusion; The protruding block is provided with a third traction point H3 for engaging with the second engaging portion of the counterpart, and the third traction point H3 is located at a position where the distance between the second traction point H2 and the protruding block is the shortest.

11. The vehicle glass lower clip according to claim 10, characterized in that: The second elastic member is provided with a fourth force point H4, a fifth force point H5, and a sixth force point H6 for contacting with the counterpart member having the third engaging portion. The fourth force point H4 is located at the bottom of the multifunctional protrusion, the fifth force point H5 is located on the avoidance portion, and the sixth force point H6 is located at the left end of the multifunctional protrusion. Based on the presence of a third engaging portion on the counterpiece, the third engaging portion engages with the multifunctional protrusion, the lower end of the third engaging portion squeezes the avoidance portion, the assembly hole contracts, the fifth force point H5 applies an oblique upward force to the third engaging portion, and the fourth force point H4 applies an oblique downward force to the third engaging portion; The third engaging portion squeezes the multifunctional protrusion so that the sixth force point H6 is in contact with the right side wall of the opponent member, and the sixth force point H6 provides a leftward force to the opponent member; The combined force of the forces provided by the fourth force point H4, the fifth force point H5 and the sixth force point H6 is directed toward the straight arm engaging portion.

12. The vehicle glass lower clip according to claim 10, characterized in that: The highest point of the multifunctional protrusion is used as the first deformation force point A, and the intersection of the upper surface and the side surface of the multifunctional protrusion is used as the second deformation force point B. The vertical coordinate is the upward direction of the straight line of the second bonding segment, and the horizontal coordinate is the leftward direction of the straight line where the third bonding segment is located. A rectangular coordinate system is established, and the coordinate expression of the curve segment AB is: ， Where h is the distance from the first deformation point A to the horizontal coordinate, To determine the angle of the corresponding point at any point on the curve segment AB; Based on the absence of the third engaging portion on the opponent piece, the multifunctional protrusion is folded downward under the pressure of the opponent piece, the lower end of the opponent piece presses the avoidance portion, and the assembly hole shrinks; The opponent part squeezes the curved segment AB, with the first deformation fulcrum A serving as the deformation force vertex and the second deformation fulcrum B serving as the deformation force end point. The curved segment AB extrude the opponent part in the opposite direction, generating a rightward force, and the avoidance portion provides an oblique upward force to the opponent part.

13. The vehicle glass lower clip according to claim 9, characterized in that: The assembly hole is an elliptical through hole, and the ratio of its major axis to minor axis is in the range of 5:(3.5-4.8).

14. The vehicle glass lower clip according to claim 10, characterized in that: A multifunctional cavity is provided between the multifunctional protrusion and the avoidance portion, and the multifunctional cavity is provided with a first curved segment connected to the protruding hook at the bottom of the multifunctional protrusion and a second curved segment connected to the avoidance portion; The curvature radius of the second curved segment is greater than the curvature radius of the first curved segment and greater than the curvature radius of the bottom protruding hook.

15. The vehicle glass lower clip according to claim 14, characterized in that: The starting end of the protruding hook at the bottom of the multifunctional protrusion is C, and the ending end connected to the first curved segment is D. The coordinate expression of the curved segment CD is: ， in, L is the distance from the lowest point of the bottom protruding hook to the first deformation point A, To determine the angle of the corresponding point at any point on the curve segment CD; The abscissa of the center of curvature of the first curved segment is the same as the abscissa of the first deformation force point A, and the ordinate is the same as the ordinate of the lowest point of the bottom protruding hook, and the curvature radius is 1.1-1.2 times the radius of the curved segment CD; The connection point between the first curved segment and the second curved segment is E, and the connection point between the second curved segment and the avoidance portion is G. The coordinate expression of curve segment EG is: ， Where R is the radius of the curve segment CD, and m is the distance from the vertex on the left side of the multifunctional protrusion to the vertical axis.

16. The vehicle glass lower clip according to claim 13, characterized in that: The coordinates of the center of the elliptical through hole are (0.75s, 1.1s), where s is the distance from the connection point of the first curved segment and the second curved segment to the vertical coordinate.

17. The vehicle glass lower clip according to claim 16, characterized in that: The elliptical through hole is tilted in the rectangular coordinate system, and the slope of its major axis is k=(p÷2-q÷3) / (pq), Among them, p=2.5R,q=1.25L.

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