Sealing plug for bayonet structure vehicle door
By designing a sealing plug with a cross-shaped reinforcement zone, a combination of bumps, and a recessed zone structure, the problems of easy displacement and deformation of the sealing component are solved, the durability and stability of the sealing component are improved, the structural strength is enhanced, it can adapt to extreme temperatures, and noise is reduced.
Patent Information
- Application Number
- CN202520366532.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-03-04
AI Technical Summary
In the prior art, the seals used for automobile doors are not designed with an overall shape, which makes the seals easy to shift or deform, and cannot provide reasonable clearance for other structures, affecting sealing performance and layout compactness.
A sealing plug for bayonet-structured car doors was designed, employing a cross-shaped reinforcement area, a combination of protrusions and recesses, combined with rounded chamfers and a waterproof strip to enhance support and stability, provide clearance space, and improve sealing.
It effectively resists the impact force when the car door is opened and closed, reduces displacement and deformation, improves the durability and stability of the seals, enhances structural strength, adapts to extreme temperature conditions, reduces noise and facilitates installation.
Smart Images

Figure CN223686335U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically a sealing plug for a bayonet-structure car door. Background Technology
[0002] Automotive sealing plugs fill various gaps and gaps between vehicle body components, providing functions such as shock absorption, waterproofing, dustproofing, sound insulation, and decoration. They enhance driving comfort and protect the vehicle body. If car owners experience significant noise during certain operating conditions, such as high-speed driving, gravel roads, or busy urban areas, the most likely cause is a problem with the vehicle's sealing performance. There are many solutions, and sealing plugs are one cost-effective option.
[0003] Chinese Utility Model Patent Publication No. CN 211441929 U discloses a leak-proof and sound-insulating seal for automobile doors. This seal utilizes window sealing strips on both sides of the car window to improve sound insulation, dust prevention, and sealing. The outer window sealing strip effectively prevents water seepage, ensures door airtightness, and reduces noise intrusion. However, this leak-proof and sound-insulating seal for automobile doors lacks a well-designed overall shape. This not only makes the seal prone to displacement or deformation under external force, affecting its sealing performance, but also fails to provide clearance for other structures, resulting in an unreasonable and inefficient layout and poor practicality. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a sealing plug for a door with a bayonet structure. It can effectively solve the problems in the prior art where the overall shape of the sealing plug is not designed, which not only makes the sealing plug easy to shift or deform when subjected to external force, affecting its sealing state, but also fails to provide clearance space for other structures, making the layout of the sealing plug not only unreasonable but also not compact enough.
[0005] The technical solution adopted by this utility model is: a sealing plug for a door with a bayonet structure, including a sealing element, a reinforcing area provided on the top of the inner side of the sealing element, a baffle strip fixedly installed on the outer side of the sealing element, a groove provided on the outer side of the baffle strip, a protruding area provided on the top of the inner side of the sealing element, a first waterproof strip provided on the outer side of the baffle strip, a positioning groove provided on the outer side of the first waterproof strip, a second waterproof strip fixedly installed on the outer side of the first waterproof strip, and a slot provided on the top of the first waterproof strip.
[0006] Preferably, the cross-section of the reinforcing zone is in the shape of a cross, and a recessed area is provided on the inner side of the reinforcing zone, the cross-section of the recessed area being in the shape of a circle.
[0007] By the technical scheme, the cross-shaped reinforcing area can provide support and stability in multiple directions, effectively resist the impact force and extrusion generated when the door is opened or closed, improve the durability of the sealing element, and the design of the first recessed area can change the stress distribution of the reinforcing area, avoid stress concentration, and make the stress more uniform.
[0008] Preferably, a first protrusion is fixedly installed on the top of the inner side of the sealing element, a second protrusion is fixedly installed on the top of the first protrusion, and the first protrusion and the second protrusion are located on the left side of the reinforcing area.
[0009] By the technical scheme, the multi-protrusion combination of the first protrusion and the second protrusion can increase the support points of the sealing element in contact with the door, so that the sealing element is not easily displaced or deformed when subjected to external force, and a stable sealing state is maintained.
[0010] Preferably, a second recessed area is formed in the inner side of the raised area, the second recessed area is located on the rear side of the first protrusion, and the edge of the raised area is designed in a circular arc chamfer.
[0011] By the technical scheme, the design of the second recessed area can provide a space for other structures without increasing the overall size, make the layout of the sealing element more reasonable and compact, and the circular arc chamfer can reduce sharp edges and reduce the risk of scratches or stings to personnel during installation, maintenance or use.
[0012] Preferably, the blocking strip is matched with the second waterproof strip through a groove, and the second waterproof strip is matched with the positioning groove.
[0013] By the technical scheme, the cooperation of the second waterproof strip and the positioning groove can form a stable whole among the blocking strip, the second waterproof strip and other components, enhance the structural strength of the sealing element, reduce deformation and looseness during use, and improve the overall sealing performance and stability.
[0014] Preferably, the first waterproof strip is made of one of ethylene propylene diene rubber, chloroprene rubber, silicone rubber and polyvinyl chloride, and the second waterproof strip is made of one of butyl rubber, foamed polyurethane and rubber-plastic blended material.
[0015] By the technical scheme, the design of the first waterproof strip can adapt to extreme temperature conditions in high and low temperature environments, effectively enhance the service life of the overall sealing element, and the design of the second waterproof strip can improve the sealing performance of the overall sealing element while reducing noise.
[0016] Preferably, the edges of the sealing element, the blocking strip, the first waterproof strip and the second waterproof strip are designed in a circular arc chamfer, the clamping slot has two identical clamping slot openings, and the two clamping slot openings are symmetrically distributed about the center line of the sealing element.
[0017] Through the above technical scheme, the contact between the sealing piece, the blocking strip, the waterproof strip one and the waterproof strip two and the vehicle door can be more close and smooth through the arc chamfer design, the problem of not tight sealing caused by the edge is reduced, the overall sealing performance is further improved, and the design of the two clamping slot openings also facilitates the installation of the sealing piece and the vehicle door.
[0018] Compared with the prior art, the utility model provides a sealing plug for the bayonet structure vehicle door has the following beneficial effects:
[0019] 1、 the sealing plug for the bayonet structure vehicle door, through the design of the cross type structure's reinforcing area, can provide support and stability in multiple directions, can effectively resist the impact force and extrusion generated when the vehicle door is opened and closed when opening and closing the vehicle door, improve the durability of the sealing piece, and the design of the recess area one can change the stress distribution of the reinforcing area, avoid the stress concentration, make the stress more uniform;
[0020] 2、 the sealing plug for the bayonet structure vehicle door, through the design of the multi-lug combination of lug one and lug two, the support point of the sealing piece and the vehicle door can be increased, so that the sealing piece is not easy to displace or deform when subjected to external force, and a stable sealing state is maintained, and through the design of the recess area two, the overall volume can be increased without increasing the overall volume, so that the layout of the sealing piece is more reasonable and compact;
[0021] 3、 the sealing plug for the bayonet structure vehicle door, the design of the two clamping slot openings also facilitates the installation of the sealing piece and the vehicle door, through the design of the waterproof strip one, in high and low temperature environment, can adapt to extreme temperature conditions, can effectively enhance the service life of the overall sealing piece, and the design of the waterproof strip two can improve the sealing property of the overall sealing piece, and also can reduce noise. DRAWINGS
[0022] Figure 1 It is the three-dimensional structure diagram of the utility model Figure 1 ;
[0023] Figure 2 It is the three-dimensional structure diagram of the utility model Figure 2 ;
[0024] Figure 3 It is the three-dimensional structure diagram of the utility model Figure 3 ;
[0025] Figure 4 It is the split structure diagram of the utility model Figure 1 ;
[0026] Figure 5 It is the split structure diagram of the utility model Figure 2 .
[0027] The components are: 1. Seal; 2. Reinforced area; 3. Recessed area one; 4. Retaining strip; 5. Groove; 6. Raised area; 7. Recessed area two; 8. Protrusion one; 9. Protrusion two; 10. Waterproof strip one; 11. Positioning groove; 12. Waterproof strip two; 13. Slot opening. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0029] Example 1: As Figures 1-5 As shown, the present invention provides a sealing plug for a door with a bayonet structure, including a sealing element 1, a reinforcing area 2 on the top of the inner side of the sealing element 1, a retaining strip 4 fixedly installed on the outer side of the sealing element 1, a groove 5 on the outer side of the retaining strip 4, a protruding area 6 on the top of the inner side of the sealing element 1, a waterproof strip 10 on the outer side of the retaining strip 4, a positioning groove 11 on the outer side of the waterproof strip 10, a second waterproof strip 12 fixedly installed on the outer side of the waterproof strip 10, and a slot 13 on the top of the waterproof strip 10.
[0030] Specifically, the cross-section of the reinforcing zone 2 is shaped like a cross, and a recessed zone 3 is provided on the inner side of the reinforcing zone 2. The cross-section of the recessed zone 3 is shaped like a circle. The advantage is that the design of the reinforcing zone 2 with the cross-shaped structure can provide support and stability in multiple directions. When the car door is opened and closed, it can effectively resist the impact and squeezing generated when the car door is opened and closed, improve the durability of the seal 1, and the design of the recessed zone 3 can change the stress distribution of the reinforcing zone 2, avoid stress concentration, and make the stress more uniform.
[0031] Specifically, a protrusion 8 is fixedly installed on the top of the inner side of the seal 1, and a protrusion 9 is fixedly installed on the top of the protrusion 8. The protrusions 8 and 9 are located on the left side of the reinforcement area 2. The advantage is that the design of multiple protrusions, namely the protrusions 8 and 9, can increase the support points of the seal 1 in contact with the door, making the seal 1 less prone to displacement or deformation when subjected to external forces, thus maintaining a stable sealing state.
[0032] Specifically, the concave area two 7 is located at the rear side of the protrusion one 8, and the edge of the convex area 6 is designed in a circular arc chamfer, which has the advantages that the concave area two 7 can provide a space for other structures without increasing the overall volume, the layout of the sealing element 1 is more reasonable and compact, and the circular arc chamfer can reduce sharp edges and reduce the risk of scratches or stings to personnel during installation, maintenance or use.
[0033] Embodiment two: as shown in the following table, which is an improvement on the previous embodiment. Figures 2-5
[0034] Specifically, the blocking strip 4 is matched with the waterproof strip two 12 through the groove 5, and the waterproof strip two 12 is matched with the positioning groove 11, which has the advantages that the blocking strip 4, the waterproof strip two 12 and other components form a stable whole through the cooperation of the waterproof strip two 12 and the positioning groove 11, the structural strength of the sealing element is enhanced, the deformation and loosening during use are reduced, and the overall sealing performance and stability are improved.
[0035] Specifically, the waterproof strip one 10 is made of one of EPDM, CR, silicone rubber and PVC, and the waterproof strip two 12 is made of one of butyl rubber, foamed polyurethane and rubber-plastic blended material, which has the advantages that the waterproof strip one 10 can adapt to extreme temperature conditions under high and low temperature environments, effectively enhance the service life of the overall sealing element 1, and the design of the waterproof strip two 12 can improve the sealing performance of the overall sealing element 1 while reducing noise.
[0036] Specifically, the edge of the sealing element 1, the blocking strip 4, the waterproof strip one 10 and the waterproof strip two 12 is designed in a circular arc chamfer, and the clamping slot 13 is provided with two same clamping slots 13 which are symmetrically distributed about the center line of the sealing element 1, which has the advantages that the circular arc chamfer design can make the sealing element 1, the blocking strip 4, the waterproof strip one 10 and the waterproof strip two 12 contact more closely and smoothly with the door, reduce the problem of loose sealing caused by edges, further improve the overall sealing performance, and the design of the two clamping slots 13 also facilitates the installation of the sealing element 1 and the door.
[0037] Working principle: in use, through the convex block one 8 and the convex block two 9 Multi-convex block combination design, can increase the support point of the sealing element 1 and the door contact, make the sealing element 1 not easy to shift or deform when subjected to external force, keep stable sealing state, through the design of the cross-shaped structure reinforcement area 2, can provide support and stability in multiple directions, when opening and closing the door, can effectively resist the impact force and extrusion generated when the door is opened and closed, improve the durability of the sealing element 1, and the design of the recessed area one 3, can change the stress distribution of the reinforcement area 2, avoid stress concentration, make the stress more uniform, through the design of the recessed area two 7, can provide a space for other structures without increasing the overall volume, make the layout of the sealing element 1 more reasonable and compact, and the arc chamfer can reduce the sharp edges, reduce the risk of scratching or stabbing to personnel during installation, maintenance or use, through the cooperation of the waterproof strip two 12 and the positioning groove 11, can form a stable whole between the fender 4, waterproof strip two 12 and other components, enhance the structural strength of the sealing plug, reduce deformation and looseness during use, improve the overall sealing and stability, through the design of the waterproof strip one 10, can adapt to extreme temperature conditions in high and low temperature environment, can effectively enhance the service life of the overall sealing element 1, and the design of the waterproof strip two 12, can improve the sealing of the overall sealing element 1, while also reducing noise, through the arc chamfer design can make the sealing element 1, fender 4, waterproof strip one 10 and waterproof strip two 12 and the door contact more closely and smoothly, reduce the problem of sealing not tight caused by the edge, further improve the overall sealing performance, and the design of the two clamping slot 13, also facilitate the sealing element 1 and the door installation.
[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A sealing plug for a bayonet structure vehicle door, comprising a sealing element (1), characterized in that: The top of the inner side of the sealing piece (1) is provided with a reinforcing area (2), the outer side of the sealing piece (1) is fixedly installed with a blocking strip (4), the outer side of the blocking strip (4) is provided with a groove (5), the top of the inner side of the sealing piece (1) is provided with a convex area (6), the outer side of the blocking strip (4) is provided with a waterproof strip one (10), the outer side of the waterproof strip one (10) is provided with a positioning groove (11), the outer side of the waterproof strip one (10) is fixedly installed with a waterproof strip two (12), and the top of the waterproof strip one (10) is provided with a clamping slot (13).
2. A sealing plug for a bayonet-structured vehicle door according to claim 1, characterized in that The reinforcing area (2) is in a "cross" shape in section, and the inner side of the reinforcing area (2) is provided with a recessed area one (3) in a "round" shape in section.
3. A sealing plug for a bayonet-structured vehicle door according to claim 2, characterized in that: The top of the inner side of the sealing piece (1) is fixedly installed with a convex block one (8), the top of the convex block one (8) is fixedly installed with a convex block two (9), and the convex block one (8) and the convex block two (9) are located on the left side of the reinforcing area (2).
4. A sealing plug for a bayonet-structured vehicle door according to claim 1, characterized in that: The inner side of the convex area (6) is provided with a recessed area two (7), the recessed area two (7) is located on the rear side of the convex block one (8), and the edge of the convex area (6) is designed in a circular arc chamfer.
5. A sealing plug for a bayonet-structured vehicle door according to claim 1, characterized in that: The blocking strip (4) is matched with the waterproof strip two (12) through the groove (5), and the waterproof strip two (12) is matched with the positioning groove (11).
6. A sealing plug for a bayonet-structured vehicle door according to claim 1, characterized in that: The waterproof strip one (10) is made of one of ethylene propylene diene rubber (EPDM), chloroprene rubber (CR), silicone rubber and polyvinyl chloride (PVC), and the waterproof strip two (12) is made of one of butyl rubber, foamed polyurethane and rubber-plastic blended material.
7. A sealing plug for a bayonet-structured vehicle door according to claim 1, characterized in that: The edges of the sealing piece (1), the blocking strip (4), the waterproof strip one (10) and the waterproof strip two (12) are all designed in a circular arc chamfer, the clamping slot (13) is provided with two same ones, and the two clamping slots (13) are symmetrically distributed about the center line of the sealing piece (1). The top of the inner side of the sealing piece (1) is provided with a reinforcing area (2), the outer side of the sealing piece (1) is fixedly installed with a blocking strip (4), the outer side of the blocking strip (4) is provided with a groove (5), the top of the inner side of the sealing piece (1) is provided with a convex area (6), the outer side of the blocking strip (4) is provided with a waterproof strip one (10), the outer side of the waterproof strip one (10) is provided with a positioning groove (11), the outer side of the waterproof strip one (10) is fixedly installed with a waterproof strip two (12), and the top of the waterproof strip one (10) is provided with a clamping slot (13).
Citation Information
Patent Citations
Leakage-proof sound insulation sealing piece for automobile door
CN211441929U