A car windshield clamping strip
By using a plug-in connection and a multi-dynamic sealing system design, the problem of having to replace the entire windshield retaining strip during maintenance in existing technologies has been solved. This enables modular assembly and independent replacement, improving sealing performance and maintenance convenience, while reducing maintenance costs and time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUNENG AUTOMOBILE CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-26
AI Technical Summary
The current design of the windshield retainer strip integrated with the glass means that the entire windshield assembly must be replaced during repairs, resulting in high repair costs and long working hours, which affects the cost-effectiveness and ease of maintenance of the sealing system.
The windshield retainer strip is modularly assembled and can be replaced independently by using a plug-in connection for the first sealing part, a detachable snap-fit connection part, and a second sealing part with an elastic sealing design. Combined with multiple sets of tilting springs distributed in a fishbone pattern and arc transition connection, a multi-layer dynamic sealing system is constructed.
It effectively reduces maintenance costs and labor hours, improves maintainability and assembly convenience, enhances sealing reliability and service life, and simplifies production processes while ensuring sealing performance, thereby reducing procurement and maintenance costs.
Smart Images
Figure CN224408930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive connection accessories technology, and in particular to an automotive windshield retaining strip. Background Technology
[0002] The lower retaining strip for automotive glass is used to connect the bottom of the windshield of a car to the ventilation cover, improving the overall sealing performance of the car and the stability of the windshield.
[0003] Currently, the sealing and overlapping structure between the automotive windshield and the ventilation cover is mainly achieved through a clip. For example, patent CN222756402U discloses a clip for the bottom of the automotive glass, which is a clip bonded to the bottom surface of the glass. Although this achieves a smooth transition between the glass and the ventilation cover and has good assembly processability, this clip is directly integrated into the windshield and shipped together with the windshield, which significantly increases the cost of parts procurement.
[0004] Furthermore, the existing structure's after-sales maintenance is quite complex. When the retaining strip is damaged, the entire windshield assembly needs to be replaced, significantly increasing repair time and after-sales costs. These technical pain points severely restrict the improvement of the cost-effectiveness and ease of maintenance of automotive sealing systems. Utility Model Content
[0005] In view of this, this utility model proposes an automotive windshield retaining strip, which aims to solve the technical problems in the prior art where the windshield assembly must be replaced as a whole during maintenance due to the integrated design of the retaining strip and the glass, resulting in high maintenance costs and long working hours.
[0006] The technical solution of this utility model is implemented as follows:
[0007] This utility model provides a windshield retainer for automobiles, including a retainer body, the retainer body comprising:
[0008] The first sealing part extends from one end along the length of the strip body and is used to be inserted between the windshield and the front bulkhead of the vehicle.
[0009] A connecting part is provided at the other end along the length of the card strip body and is fixedly connected to the first sealing part. The top surface of the connecting part has a snap-fit groove for snap-fitting with the insertion part of the ventilation cover.
[0010] The second sealing part, located between the first sealing part and the connecting part, is used to achieve a sealed connection between the bottom edge of the windshield and the edge of the ventilation cover.
[0011] Based on the above technical solution, preferably, a plurality of first spring pieces are provided on both the upper and lower sides of the first sealing part, each first spring piece is arranged at intervals along the length direction of the first sealing part and extends obliquely toward the direction of the second sealing part, and the first spring piece and the first sealing part are integrally formed.
[0012] Based on the above technical solution, preferably, a plurality of second spring pieces are arranged opposite each other on the inner side of the snap-fit groove, and each first spring piece is arranged at intervals in the vertical direction and inclined downwards. The minimum distance between the second spring pieces on both sides of the snap-fit groove is less than the thickness of the insertion part of the ventilation cover plate, and the second spring pieces and the connecting part are integrally formed.
[0013] Based on the above technical solution, preferably, the second sealing part includes:
[0014] The transition section forms an arc transition at the junction with the first sealing part and the connecting part;
[0015] The inclined sealing section extends upward from the transition connection section toward the first sealing part;
[0016] The top of the inclined sealing section is used to form a sealing contact with the lower edge of the windshield and the edge of the ventilation cover.
[0017] Based on the above technical solution, preferably, the lower end of the transition connecting segment is connected to the top end of the connecting part by a circular arc transition.
[0018] Based on the above technical solution, preferably, the vertical distance from the top of the inclined sealing section to the bottom of the connecting part is L1; the vertical distance from the lower edge of the windshield to the upper surface of the front bulkhead of the vehicle is L2; wherein, 0≤L2-L1≤0.5mm.
[0019] Based on the above technical solution, preferably, the first sealing part, the connecting part and the second sealing part are integrally formed to constitute the card strip body.
[0020] Based on the above technical solution, preferably, the card strip body is provided with reinforcing ribs, and the reinforcing ribs are located in the first sealing part, the connecting part and part of the second sealing part.
[0021] Based on the above technical solution, preferably, the card strip body is also provided with a buffer layer, and the buffer layer is fixedly located on the bottom surface of the connecting part.
[0022] Based on the above technical solution, preferably, the opening end of the snap-fit groove is provided with guide slopes on both sides, and the guide slopes extend outward from the groove opening to guide the insertion part of the ventilation cover plate.
[0023] The present invention has the following advantages over the prior art:
[0024] (1) Through the plug-in connection of the first sealing part, the detachable snap-fit structure of the connecting part and the elastic sealing design of the second sealing part, the modular assembly and independent replacement of the windshield clip strip are realized, which effectively solves the technical problem that the windshield assembly must be replaced as a whole when the traditional adhesive clip strip is repaired. While ensuring the sealing performance, the maintenance cost and time are significantly reduced, and the maintainability and assembly convenience of the product are improved.
[0025] (2) By setting multiple sets of inclined springs in a fishbone pattern on the upper and lower sides of the first sealing part, a multi-dynamic sealing system is constructed: the inclined spring layout is convenient for guiding insertion during installation and can form a progressive compression seal after positioning; the distributed design of multiple sets of springs makes the sealing pressure evenly distributed, effectively compensating for gap fluctuations caused by assembly tolerances and environmental changes; the one-piece molded spring structure ensures the elasticity retention capability during long-term use, and significantly improves the sealing reliability and service life of the card strip.
[0026] (3) The second sealing part is set as a transition connection section and an inclined sealing section. The transition connection section is connected to the first sealing part and the connection part by a circular arc transition, which effectively disperses stress concentration and improves structural durability. The inclined sealing section extends upward, and its top end forms a double sealing contact with the lower edge of the windshield and the edge of the ventilation cover plate at the same time. The material elasticity is used to continuously apply contact pressure to ensure sealing reliability. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a three-dimensional structural diagram of the automotive windshield retaining strip disclosed in this utility model;
[0029] Figure 2 This is a schematic diagram of the assembled structure of the automotive windshield retaining strip disclosed in this utility model.
[0030] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;
[0031] Figure label:
[0032] 1. Locking strip body; 11. First sealing part; 12. Connecting part; 121. Locking groove; 13. Second sealing part; 10. First spring; 14. Second spring; 131. Transition connecting section; 132. Inclined sealing section; 15. Reinforcing rib; 2. Buffer layer; 3. Windshield; 4. Ventilation cover; 41. Insertion part; 5. Front panel. Detailed Implementation
[0033] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0034] like Figure 1 As shown, combined with Figure 2-3 This utility model discloses a car windshield retainer strip, including a retainer strip body 1, wherein the retainer strip body 1 includes a first sealing part 11, a connecting part 12, and a second sealing part 13.
[0035] The first sealing part 11 extends along one end of the length direction of the strip body 1. In this embodiment, the first sealing part 11 is strip-shaped at one end of the strip body 1 and is used to be inserted between the windshield 3 and the front bulkhead 5 of the car.
[0036] In the prior art, the clip body 1 is pre-fixed together with the windshield 3 to form the windshield 3 assembly. After the windshield 3 assembly is installed on the front bulkhead 5 of the car, the ventilation cover 4 is connected to the windshield 3 through the clip body 1. However, the clip body 1 is fixed to the bottom surface of the windshield 3 by adhesive bonding through the first sealing part 11. When the clip is damaged, the entire windshield 3 assembly needs to be replaced, which significantly increases the maintenance cost and labor time.
[0037] In this embodiment, the first sealing part 11 is connected to the windshield 3 and the front bulkhead 5 by a plug-in connection. This structure replaces the traditional adhesive method with a physical plug-in connection, allowing the retaining strip to be installed independently of the windshield 3. Specifically, the lower end of the windshield 3 is first fixed to the top surface of the front bulkhead 5 by adhesive. After the windshield 3 and the front bulkhead 5 are glued and fixed, a certain gap is left between the windshield 3 and the front bulkhead 5 to ensure that the gap allows the first sealing part 11 to be inserted. When the first sealing part 11 is plugged in, it forms a bidirectional constraint, fitting upwards against the lower edge of the windshield 3 and downwards against the upper surface of the front bulkhead 5, forming a seal.
[0038] When the retaining strip is damaged, the first sealing part 11 in the retaining strip can be pulled out directly from the windshield 3 and the front panel 5 by first removing the ventilation cover 4. This makes it easy to remove the retaining strip and replace it with a new one by plugging it in. There is no need to replace the windshield 3, which greatly saves maintenance costs and time.
[0039] The connecting part 12 is provided at the other end along the length of the strip body 1 and is fixedly connected to the first sealing part 11. The top surface of the connecting part 12 has a snap-fit groove 121 for snap-fitting with the insertion part 41 of the ventilation cover 4. After the first sealing part 11 of the strip is inserted between the windshield 3 and the front bulkhead 5, the ventilation cover 4 is then installed. The insertion part 41 of the ventilation cover 4 and the snap-fit groove 121 on the top surface of the connecting part 12 are detachably connected. During operation, when the insertion part 41 of the ventilation cover 4 is pressed down, it forces the side wall of the snap-fit groove 121 to expand elastically. After it is in place, the side wall rebounds to form a mechanical interlock, realizing the quick installation and removal of the ventilation cover 4.
[0040] The second sealing part 13, located between the first sealing part 11 and the connecting part 12, is used to achieve a sealed connection between the bottom edge of the windshield and the edge of the ventilation cover 4. When the insertion part 41 of the ventilation cover 4 is assembled with the snap-fit groove 121, the side of the ventilation cover 4 facing the windshield 3 abuts against the second sealing part 13. The second sealing part 13 uses the elasticity of the material to maintain contact pressure after assembly, achieving a sealed connection between the windshield 3, the snap-fit strip, and the ventilation cover 4. At the same time, the ventilation cover 4 is connected to the windshield 3 and the front bulkhead 5 through the snap-fit strip, and the elastic contact avoids the problem of abnormal noise caused by hard contact.
[0041] This utility model achieves modular assembly and independent replacement of windshield clips through the plug-in connection of the first sealing part 11, the detachable snap-fit structure of the connecting part 12, and the elastic sealing design of the second sealing part 13. It effectively solves the technical problem that the entire windshield assembly must be replaced when repairing traditional adhesive clips. While ensuring sealing performance, it significantly reduces maintenance costs and time, and improves the maintainability and assembly convenience of the product.
[0042] In some implementations, a plurality of first spring tabs 10 are provided on both the upper and lower sides of the first sealing portion 11. The first spring tabs 10 are spaced apart along the length of the first sealing portion 11 and extend obliquely toward the second sealing portion 13. In this embodiment, the plurality of first spring tabs 10 are arranged in a fishbone pattern on the first sealing portion 11. This fishbone-patterned arrangement of the first spring tabs 10, by tilting toward the second sealing portion 13, allows them to automatically adjust their angle during insertion, forming a progressively tight fit with the windshield 3 and the front bulkhead 5. Each group of spring tabs is equivalent to an independent sealing unit, collectively constructing multiple waterproof lines of defense.
[0043] The inclined, extended spring arrangement creates a natural guide slope, a design that allows the retaining strip to achieve a "tighter as it's inserted" effect during installation. When the first sealing part 11 is pushed into the gap, the spring will first bend and deform accordingly, and then, once fully in place, it will press tightly against the contact surface due to the material's resilience. This guiding mechanism significantly reduces assembly difficulty and ensures smooth installation even with minor dimensional deviations.
[0044] The fishbone-shaped arrangement of spring contacts forms a dynamic sealing system. When vehicle vibrations or temperature changes cause fluctuations in the gap size, each spring contact can independently compensate elastically to maintain a constant contact pressure. This distributed design offers better environmental adaptability compared to a monolithic sealing lip and effectively addresses material creep issues during long-term use.
[0045] The integral molding design of the first spring piece 10 and the first sealing part 11 eliminates the weak connection points that may exist in traditional assembled structures. This integral structure enhances the fatigue resistance of the spring piece, enabling it to maintain stable elastic contact force even under long-term vibration. The integral molding also simplifies the manufacturing process and improves product consistency and reliability.
[0046] By setting multiple sets of inclined springs in a fishbone pattern on the upper and lower sides of the first sealing part 11, a multi-dynamic sealing system is constructed: the inclined spring layout facilitates insertion during installation and forms a progressive compression seal after positioning; the distributed design of multiple sets of springs ensures uniform distribution of sealing pressure, effectively compensating for gap fluctuations caused by assembly tolerances and environmental changes; the one-piece molded spring structure ensures elasticity retention during long-term use, significantly improving the sealing reliability and service life of the strip.
[0047] As one implementation, multiple sets of relatively distributed second spring pieces 14 are provided on the inner side of the snap-fit groove 121, which optimizes the snap-fit stability and sealing performance of the insertion part 41 of the ventilation cover 4: the second spring pieces 14 are arranged at intervals in the vertical direction and are inclined downward to form a progressive elastic clamping structure. When the insertion part 41 of the ventilation cover 4 is inserted, the spring pieces are compressed and deformed, generating a continuous elastic recovery force to ensure a tight snap-fit; the minimum distance between the spring pieces on both sides of the snap-fit groove 121 is less than the thickness of the insertion part 41, so that the spring pieces are always in a pre-compressed state to avoid loosening; the one-piece molded spring pieces and the connecting part 12 design enhance the structural strength, prevent the spring pieces from fatigue failure after long-term use, and improve the overall reliability and sealing durability of the connection between the snap-fit strip and the ventilation cover 4.
[0048] To achieve efficient sealing and assembly coordination between the windshield 3 and the ventilation cover 4, this embodiment optimizes the structural design of the second sealing part 13. Specifically, the second sealing part 13 consists of a transition connecting section 131 and an inclined sealing section 132. The transition connecting section 131 is connected to the first sealing part 11 and the connecting part 12 by an arc transition, which effectively disperses stress concentration and improves structural durability. The inclined sealing section 132 extends upward at an angle, and its top end simultaneously forms a double sealing contact with the lower edge of the windshield 3 and the edge of the ventilation cover 4. The material elasticity is used to continuously apply contact pressure to ensure sealing reliability.
[0049] As one implementation method, by setting an arc transition connection between the lower end of the transition connection section 131 and the top end of the connection part 12, the stress distribution is further optimized. This continuous and smooth transition design has three technical effects: First, it eliminates the stress concentration phenomenon at the traditional right-angle connection, significantly improving the fatigue resistance of the structure; second, the arc transition makes the elastic deformation of the sealing section more uniform, ensuring the stability of the sealing pressure during long-term use; third, the top end of the insertion part 41 is connected to the bottom end of the entire second sealing part 13. In this way, after the insertion part 41 of the ventilation cover plate 4 is inserted into the snap-fit groove 121 of the connection part 12, the front edge of the ventilation cover plate 4 horizontally presses the inclined sealing section 132, and the windshield 3 and the ventilation cover plate 4 are reliably sealed by the elastic deformation of the inclined sealing section 132.
[0050] It is understandable that the cover plate of the ventilation cover plate 4 is a smooth curved panel body, and the insertion part 41 is vertically set on the bottom surface of the panel body. After the insertion part 41 is inserted into the snap-fit groove 121, the snap-fit is achieved. At the same time, the cover plate of the ventilation cover plate 4 is sealed and connected to the windshield 3 by pressing the inclined sealing section 132.
[0051] In this embodiment, guide slopes are provided on both sides of the opening end of the snap-fit groove 121. The guide slopes extend outward from the groove opening to guide the insertion part 41 of the ventilation cover plate 4 into place.
[0052] In some implementations, the vertical distance from the top of the inclined sealing section 132 to the bottom of the connecting part 12 is L1; the vertical distance from the lower edge of the windshield 3 to the upper surface of the front bulkhead 5 is L2; wherein, 0≤L2-L1≤0.5mm. This key dimensional control ensures that the mounting strip and the windshield 3 achieve a precise height match after assembly, and eliminates the common protrusion defects of traditional mounting strips through dimensional tolerance control, achieving complete flushness between the glass and the cover plate; the upper deviation range of 0.5mm ensures both assembly tolerance and maintains aesthetic requirements.
[0053] In some implementations, the first sealing part 11, the connecting part 12, and the second sealing part 13 are integrally formed. This eliminates the weak points in the connection of the traditional segmented structure, and the overall structure has higher mechanical strength and vibration resistance, avoiding cracking at the connection during long-term use; the transition between the functional components is smoother and more continuous, ensuring the integrity and reliability of the sealing system; at the same time, it simplifies the production process and improves product consistency and yield.
[0054] As some embodiments, the card strip body 1 is provided with a reinforcing rib 15, and the reinforcing rib 15 is located in the first sealing part 11, the connecting part 12 and part of the second sealing part 13.
[0055] Reinforcing ribs 15 are provided in the first sealing part 11, the connecting part 12, and part of the second sealing part 13 of the card strip body 1 to form an internal support skeleton. This significantly enhances the deformation resistance of key stress-bearing parts, enabling the card strip to maintain structural stability when subjected to installation pressure and driving vibration. By optimizing the distribution range of the reinforcing ribs 15, the elastic deformation performance of the inclined sealing section 132 is not affected while ensuring mechanical strength.
[0056] In this embodiment, the overall material of the card strip body 1 is thermoplastic elastomer (TPE) or ethylene propylene diene monomer (EPDM), preferably EPDM, which has excellent weather resistance, aging resistance, good mechanical strength and elastic recovery rate.
[0057] In this embodiment, the reinforcing rib 15 is made of metal, and it is combined with the card strip body 1 by extrusion or injection molding.
[0058] In some implementations, a buffer layer 2 is also provided on the strip body 1, and the buffer layer 2 is fixedly located on the bottom surface of the connecting part 12. With the provision of the buffer layer 2, when the strip body 1 is installed between the windshield 3 and the front bulkhead 5, and the ventilation plate is inserted into the snap-fit groove 121, the insertion part 41 applies downward pressure to the snap-fit groove 121. At this time, the buffer layer 2 is located between the connecting part 12 and the front bulkhead 5, forming an elastic buffer interface, which effectively absorbs the vibration energy during vehicle operation, reduces the impact noise at the contact point between the strip and the vehicle body, and improves the adaptability of the system by compensating for manufacturing and assembly tolerances through elastic deformation.
[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A windshield retaining strip for automobiles, comprising a retaining strip body (1), characterized in that, The card strip body (1) includes: The first sealing part (11) extends along one end of the length direction of the card strip body (1) and is used to be inserted between the windshield (3) and the front panel (5) of the car. The connecting part (12) is provided at the other end along the length direction of the card strip body (1) and is fixedly connected to the first sealing part (11). The top surface of the connecting part (12) has a snap-fit groove (121) for snap-fitting with the insertion part (41) of the ventilation cover plate (4). The second sealing part (13) is located between the first sealing part (11) and the connecting part (12) and is used to achieve a sealed connection between the bottom edge of the windshield (3) and the edge of the ventilation cover (4).
2. The automotive windshield retaining strip as described in claim 1, characterized in that: Multiple first spring pieces (10) are provided on both the upper and lower sides of the first sealing part (11). Each first spring piece (10) is arranged at intervals along the length direction of the first sealing part (11) and extends obliquely toward the direction of the second sealing part (13). The first spring piece (10) and the first sealing part (11) are integrally formed.
3. The automotive windshield retaining strip as described in claim 1, characterized in that: The snap-fit groove (121) has multiple second spring pieces (14) arranged opposite each other on the inner side. Each second spring piece (14) is arranged at intervals in the vertical direction and is inclined downward. The minimum distance between the second spring pieces (14) on both sides of the snap-fit groove (121) is less than the thickness of the insertion part (41) of the ventilation cover plate (4). The second spring pieces (14) and the connecting part (12) are integrally formed.
4. The automotive windshield retaining strip as described in claim 1, characterized in that: The second sealing part (13) includes: The transition section (131) forms an arc transition at the junction with the first sealing part (11) and the connecting part (12); The inclined sealing section (132) extends upward from the transition connecting section (131) toward the first sealing part (11); The top of the inclined sealing section (132) is used to form a sealing contact with the lower edge of the windshield (3) and the edge of the ventilation cover (4).
5. The automotive windshield retaining strip as described in claim 4, characterized in that: The lower end of the transition connecting section (131) is connected to the top end of the connecting part (12) by a circular arc transition.
6. The automotive windshield retaining strip as described in claim 5, characterized in that: The vertical distance from the top of the inclined sealing section (132) to the bottom of the connecting part (12) is L1; the vertical distance from the lower edge of the windshield (3) to the upper surface of the front bulkhead (5) of the vehicle is L2; wherein, 0≤L2-L1≤0.5mm.
7. The automotive windshield retaining strip as described in claim 1, characterized in that: The first sealing part (11), the connecting part (12) and the second sealing part (13) are integrally formed.
8. The automotive windshield retaining strip as described in claim 7, characterized in that: The card strip body (1) is provided with a reinforcing rib (15), and the reinforcing rib (15) is located in the first sealing part (11), the connecting part (12) and part of the second sealing part (13).
9. The automotive windshield retaining strip as described in claim 1, characterized in that: The card strip body (1) is also provided with a buffer layer (2), and the buffer layer (2) is fixedly located on the bottom surface of the connecting part (12).
10. The automotive windshield retaining strip as described in claim 1, characterized in that: The slot (121) has guide slopes on both sides of its opening end. The guide slopes extend outward from the slot opening to guide the insertion part (41) of the ventilation cover (4) into place.