Vehicle door outer water cutting part convenient to fix

The design of the limiting groove and the snap-fit ​​component solves the problems of weather resistance and disassembly and maintenance of the water-cut adhesive fixing on the outside of the car door, and achieves rapid fixing and efficient sealing, thereby improving installation efficiency and service life.

CN224145741UActive Publication Date: 2026-04-21XIANJU HUAHANG RUBBER PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANJU HUAHANG RUBBER PLASTIC CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing bonding and fixing method for the exterior water cutter of the car door has poor weather resistance, is difficult to disassemble and repair, and is difficult to clean up glue residue. The bonding strength decreases over time.

Method used

It adopts a limiting groove and locking assembly, including the design of locking pillars, limiting plates and springs. The locking blocks cooperate with the locking grooves of the vehicle body sheet metal to achieve quick fixation. Combined with multiple waterproof and noise reduction layers, it improves sealing and stability.

Benefits of technology

It achieves precise positioning of the external water-cutting base between the vehicle body sheet metal and the window, improving installation efficiency and sealing effect, reducing noise, and extending service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224145741U_ABST
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Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to a convenient-to-fix automobile door outer sealing strip which comprises an outer sealing strip base, a limiting groove is formed in the outer sealing strip base, a clamping assembly is arranged in the limiting groove, and the clamping assembly comprises a clamping column arranged in the limiting groove. The clamping column penetrates through the outer water cutting base, one end of the clamping column is fixedly connected with a limiting plate, the limiting plate slides in the limiting groove, and the outer water cutting base is rapidly clamped and fixed at the optimal position between a vehicle body metal plate and a vehicle window through the clamping assembly. Through the cooperation of the clamping blocks, the limiting plates, the springs and the limiting grooves, the outer water cutting base can be accurately positioned at the ideal position between the vehicle body metal plate and the vehicle window, it is guaranteed that the outer water cutting base is matched with the vehicle window and the vehicle body metal plate to reach the optimal state, and therefore the good sealing effect is achieved, the installation time is saved during installation, and the installation efficiency is improved. And the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to an easy-to-fix exterior water cutter for car doors. Background Technology

[0002] In automotive parts, the inner and outer waterstops refer to the rubber sealing strips in the grooves at the bottom edge of the door glass. The inner one is called the inner waterstop, and the outer one is called the outer waterstop. Generally, the car window glass is held between the outer and inner waterstops. The outer waterstop achieves the sealing and decorative functions between the outer door panel and the window glass, and has functions such as waterproofing, sealing, and dustproofing. The most common way to fix the outer waterstop of the car door is by adhesive bonding, which involves applying sealant to attach and fix the outer waterstop to the surface of the car door.

[0003] An existing authorized publication number CN221250549U discloses a noise-reducing exterior waterstop for vehicle doors, comprising: an exterior waterstop base, a first waterstop lip on the top of the exterior waterstop base, and a third waterstop lip fixedly connected to the bottom of one side of the exterior waterstop base; a second waterstop assembly disposed in the middle of one side of the exterior waterstop base; and a noise-reducing mechanism disposed between the first waterstop lip and the second waterstop assembly. The noise-reducing mechanism includes: a first groove and a second groove respectively formed on the inner side of the first waterstop lip and the top of one end of the second waterstop assembly; multiple talcum powder blocks respectively fixedly embedded in the inner cavities of the first groove and the second groove; and multiple greases applied to the outer wall of the talcum powder blocks. This invention, through the coordinated arrangement of the second waterstop assembly and the noise-reducing mechanism, facilitates the adhesion of grease to the outer wall of the talcum powder blocks, reduces sliding friction, avoids noise caused by the sliding of the vehicle window glass, and improves the service life of the exterior waterstop.

[0004] Regarding the aforementioned technologies, the existing exterior waterstops for car doors have the following drawbacks: the bonding method not only requires the adhesive to have extremely high weather resistance, but also leaves adhesive residue during disassembly and repair, making cleaning difficult. In addition, the bonding strength will decrease over time. Therefore, this utility model provides an exterior waterstop for car doors that is easy to fix. Utility Model Content

[0005] The purpose of this application is to provide an easy-to-fix external water cutter for vehicle doors, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] An easy-to-fix car door external water cutter includes an external water cutter base. The external water cutter base has a limiting groove inside. The limiting groove is provided with an engaging assembly. The engaging assembly includes a locking post disposed inside the limiting groove. The locking post passes through the external water cutter base. One end of the locking post is fixedly connected to a limiting plate. The limiting plate slides inside the limiting groove. A spring is fixedly connected inside the limiting plate. The other end of the spring is fixedly connected to the inner sidewall of the limiting groove.

[0008] Preferably, the outer side of the external water-cutting base is provided with a vehicle body sheet metal, the side wall of the vehicle body sheet metal is provided with a card hole that matches the card post, and the side wall of the card post is provided with a slot.

[0009] Preferably, a locking block is provided inside the slot, the locking block is a rubber block, and a slot adapted to the locking block is opened inside the sheet metal of the vehicle body.

[0010] Preferably, the interior of the external water-cutting base is provided with steel frame bars, and the sidewall of the external water-cutting base is provided with a first lip, a second lip, and a third lip.

[0011] Preferably, the sidewall of the first lip is provided with a first waterproof layer, the first waterproof layer is made of butyl rubber, and the sidewall of the first waterproof layer is provided with a first noise reduction layer, the first noise reduction layer is made of sound-absorbing felt.

[0012] Preferably, the sidewall of the second lip is provided with a second waterproof layer, which is made of EPDM rubber.

[0013] Preferably, the sidewall of the second waterproof layer is provided with a second noise reduction layer, which is made of rubber foam, and the sidewalls of the second lip and the third lip are provided with friction layers, which are made of thermoplastic elastomer.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] The snap-fit ​​assembly allows the outer water-cutting base to be quickly snapped into place at the optimal position between the vehicle body sheet metal and the window. The combination of snap-fit ​​blocks, limiting plates, springs, and limiting grooves ensures that the outer water-cutting base is precisely positioned between the vehicle body sheet metal and the window, guaranteeing optimal fit between the outer water-cutting base and the window and body sheet metal, thus achieving a good sealing effect. This saves installation time and improves production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view axial side view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the steel frame bar structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the card post of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first lip of this utility model.

[0021] In the diagram: 1. External water-cutting base; 2. Vehicle body sheet metal; 3. First lip; 4. Second lip; 5. Friction layer; 6. Third lip; 7. Steel frame strip; 8. Locking post; 9. Locking block; 10. Limiting plate; 11. Spring; 12. Limiting groove; 13. First waterproof layer; 14. First noise reduction layer; 15. Second noise reduction layer; 16. Second waterproof layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1: Reference Figure 1-4The illustrated car door exterior water cutter includes an exterior water cutter base 1, which serves as the basic load-bearing component for the exterior water cutter, providing a support structure for the installation and fixation of other components. The base 1 has a limiting groove 12 inside, which limits the movement range of the engaging assembly, ensuring stable operation of the engaging assembly during fixation and preventing displacement that could affect the fixation effect. The engaging assembly is housed inside the limiting groove 12. This engaging assembly is the core component for quickly fixing the exterior water cutter. Through its own structural cooperation, the exterior water cutter can be securely installed on the vehicle body sheet metal 2. The engaging assembly includes a locking post 8 disposed inside the limiting groove 12. The locking post 8 penetrates the exterior water cutter base 1 and serves as a key component for engaging with the vehicle body sheet metal 2. The locking post 8 can be inserted into a corresponding locking hole on the vehicle body sheet metal 2, achieving initial fixation of the exterior water cutter to the vehicle body. One end of the locking post 8 is fixedly connected to a limiting plate 10, which is located inside the limiting groove 12. The sliding limit plate 10 is used to limit the sliding distance of the locking post 8 and provide a support point for the spring 11 to ensure that the locking post 8 can move stably when subjected to force. The other end of the spring 11 is fixedly connected to the inner side wall of the limiting groove 12. The spring 11 provides elastic restoring force for the locking post 8. When the relative position of the outer water cutter base 1 and the vehicle body sheet metal 2 is appropriate, the spring 11 pushes the locking post 8 into the locking hole of the vehicle body sheet metal 2 to ensure that the outer water cutter is firmly fixed. The outer side of the outer water cutter base 1 is provided with the vehicle body sheet metal 2. The vehicle body sheet metal 2 is an important part of the car body and provides the installation position and support for the outer water cutter. Its side wall is provided with a locking hole that matches the locking post 8. The locking hole and the locking post 8 cooperate to achieve precise positioning and firm connection between the outer water cutter base 1 and the vehicle body sheet metal 2. The side wall of the locking post 8 is provided with a slot. The slot is used to reduce the weight of the locking post 8 and may also provide a certain buffer space for the locking post 8 when it is deformed under force, thereby enhancing the durability of the locking post 8.

[0025] Example 2: Reference Figure 1-4Based on the same concept as Embodiment 1 above, this embodiment further proposes that a locking block 9 is provided inside the slot. The locking block 9 is made of rubber, which has good elasticity and flexibility. It can deform when squeezed, making it easy to insert into the slot opened inside the vehicle body sheet metal 2. After the locking block 9 enters the slot, it returns to its original shape using its own elasticity and is tightly locked in the slot, enhancing the connection and tightness between the locking post 8 and the vehicle body sheet metal 2, and preventing the outer water-cutting base 1 from loosening. The vehicle body sheet metal 2 has a slot inside that matches the locking block 9. The slot provides a precise installation position for the locking block 9 and forms a stable locking structure with the locking block 9, ensuring that the outer water-cutting base 1 and the vehicle body sheet metal 2 are securely connected. The sheet metal body 2 is tightly connected. The interior of the outer water-cutting base 1 is equipped with steel frame bars 7, which provide structural support for the outer water-cutting base 1, enhancing its overall strength and rigidity, making it less prone to deformation under external forces, and ensuring the installation stability and service life of the outer water-cutting device. The sidewalls of the outer water-cutting base 1 are provided with a first lip 3, a second lip 4, and a third lip 6. These three lips together form a sealing and protective structure, tightly fitting against the window edge when the window is closed, preventing rainwater, dust, and other external debris from entering the vehicle. The sidewall of the first lip 3 is provided with a first waterproof layer 13, which is made of butyl rubber. The base rubber possesses excellent airtightness and watertightness, effectively preventing moisture penetration and ensuring waterproofing between the window and the exterior watertight seal. A first noise-reducing layer 14, made of sound-absorbing felt, is provided on the sidewall of the first waterproof layer 13. This sound-absorbing felt effectively absorbs noise generated during window operation and external noise, dissipating sound waves as heat energy, thus reducing interior noise levels and improving ride comfort. A second waterproof layer 16, made of EPDM rubber, is provided on the sidewall of the second lip 4. EPDM rubber exhibits excellent weather resistance, aging resistance, and waterproofing properties, maintaining a good seal for extended periods under various environmental conditions. To further enhance the waterproof performance of the window, a second noise reduction layer 15 is provided on the side wall of the second waterproof layer 16. The second noise reduction layer 15 is made of rubber foam, which has good sound insulation and heat insulation properties and can effectively block the transmission of noise. At the same time, it plays a buffering role in the vibration between the window and the second lip 4, reducing noise generation. Friction layers 5 are provided on the side walls of the second lip 4 and the third lip 6. Friction layers 5 are made of thermoplastic elastomer. Thermoplastic elastomer has moderate friction force, which can not only ensure the relative stability between the window and the outer water cutter during the raising and lowering process, preventing the window from shaking, but also make the window raising and lowering smooth, reducing jamming, and improving the smoothness and reliability of window operation.

[0026] The working principle of this utility model is as follows: When using this exterior water cutter, the exterior water cutter base 1 is inserted between the vehicle body sheet metal 2 and the window. The vehicle body sheet metal 2 will squeeze the locking block 9, and the limiting plate 10 will squeeze the spring 11, causing the spring 11 to contract. The locking block 9 will retract into the interior of the exterior water cutter base 1. When the relative position of the vehicle body sheet metal 2 and the exterior water cutter base 1 is most suitable, the spring 11 will return to its original position, allowing the locking block 9 to extend into the pre-cut slot in the vehicle body sheet metal 2, thus completing the fixation. The window will squeeze the second lip 4 and the third lip 6, and the friction layer 5 will adhere to the window, positioning and limiting the window's vertical movement. The second lip 4 will adhere to the first lip 3, and waterproof protection will be provided by the first waterproof layer 13 and the second waterproof layer 16. The first noise reduction layer 14 and the second noise reduction layer 15 adhere to each other to prevent noise from the window moving up and down.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 vehicle door outer trim panel which is easy to fix, comprising an outer trim panel base (1), characterized in that: The outer water-cutting base (1) has a limiting groove (12) inside, and the limiting groove (12) is provided with a locking component inside; The locking assembly includes a locking post (8) disposed inside the limiting groove (12), the locking post (8) penetrating the outer water-cutting base (1), one end of the locking post (8) being fixedly connected to a limiting plate (10), the limiting plate (10) sliding inside the limiting groove (12), a spring (11) being fixedly connected inside the limiting plate (10), and the other end of the spring (11) being fixedly connected to the inner sidewall of the limiting groove (12).

2. A water deflector for a vehicle door according to claim 1, wherein: The outer side of the external water-cutting base (1) is provided with a vehicle body sheet metal (2), the side wall of the vehicle body sheet metal (2) is provided with a card hole that matches the card post (8), and the side wall of the card post (8) is provided with a slot.

3. A water deflector for a vehicle door according to claim 2, wherein: The slot is provided with a locking block (9), which is a rubber block. The body sheet metal (2) is provided with a slot that matches the locking block (9).

4. A water deflector according to claim 3, wherein: The interior of the external water shear base (1) is provided with steel frame strips (7), and the side wall of the external water shear base (1) is provided with a first lip (3), a second lip (4) and a third lip (6).

5. A water deflector for a vehicle door according to claim 4, wherein: The sidewall of the first lip (3) is provided with a first waterproof layer (13), which is made of butyl rubber. The sidewall of the first waterproof layer (13) is provided with a first noise reduction layer (14), which is made of sound-absorbing felt.

6. A water deflector for a vehicle door according to claim 5, wherein: The sidewall of the second lip (4) is provided with a second waterproof layer (16), which is made of EPDM rubber.

7. A water deflector for a vehicle door according to claim 6, wherein: The second waterproof layer (16) has a second noise reduction layer (15) on its sidewall. The second noise reduction layer (15) is made of rubber foam. The sidewalls of the second lip (4) and the third lip (6) are both provided with friction layers (5), which are made of thermoplastic elastomer.

Citation Information

Patent Citations

  • Noise reduction type car door outer sealing strip

    CN221250549U