A door rubber strip and a testing device thereof

Abstract

This utility model discloses a door sealing strip and its inspection tool, relating to the field of door sealing strip technology. It includes a sealing strip assembly comprising an outer supporting strip and an inner embedded strip. The two ends of the outer supporting strip are fixedly bonded to the two ends of the inner embedded strip. A support sleeve is provided inside the outer supporting strip, and a shape memory metal inner wire is fixedly inserted at the center of the support sleeve. Multiple sets of shape memory metal support strips are equidistantly welded to the outer wall of the support sleeve. An inner cavity is opened inside the inner embedded strip. This utility model, a door sealing strip and its inspection tool, incorporates EPDM rubber into the outer supporting strip, integrating the weather resistance (UV resistance, ozone resistance) of EPDM rubber to enhance the performance of the exposed strip. Nanoscale reinforcing fillers, such as graphene, are incorporated into the material of the inner embedded strip to improve its tear resistance. Optimized materials are specifically incorporated according to the different usage environments and strength requirements of various parts of the sealing strip assembly to improve the overall performance of the strip.

Description

Technical Field

[0001] This utility model relates to the field of door sealant technology, and in particular to a door sealant and its inspection tool. Background Technology

[0002] Door seals are sealing strips installed between car doors and the car body. They are mainly used to fill gaps in the car body, isolate external noise, waterproof and dustproof, and cushion the impact when the door closes, thereby improving the vehicle's sealing, comfort, and safety.

[0003] During use, because part of the door seal strip is exposed to the outside and adheres to the glass, this part is susceptible to erosion from sunlight and rain. Therefore, the required strength and performance of this part is different from that of the part inserted into the groove. Currently, the seal strip is molded as a single piece of the same material. Although the manufacturing method is simple, the performance cannot be specifically improved according to the problems that are prone to occur in each part. The performance is generally average. In addition, since the door seal strip is a monolithic structure, local aging and deformation can easily pull on the overall structure, causing gaps in other parts and affecting the sealing effect. Utility Model Content

[0004] The purpose of this utility model is to provide a door seal strip and its inspection tool to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a car door rubber strip, comprising a rubber strip assembly, the rubber strip assembly including an outer support rubber strip and an inner embedded rubber strip, the two ends of the outer support rubber strip being fixedly bonded to the two ends of the inner embedded rubber strip respectively, the outer support rubber strip having a support sleeve inside, a memory metal inner wire being fixedly inserted at the center of the support sleeve, multiple sets of memory metal support strips being welded and fixed at equal intervals on the outer wall of the support sleeve, the inner embedded rubber strip having an inner cavity inside, a repair capsule being placed inside the inner cavity, and the repair capsule being filled with a repair fluid.

[0006] As a preferred technical solution of this utility model, a support block is fixedly connected to one end of the plurality of memory metal support strips away from the support sleeve, and the support block is fixedly bonded to the inner wall of the outer support strip.

[0007] With the above technical solution, the support block has a larger area, which can fully support and adhere to the inner wall of the outer support strip.

[0008] As a preferred embodiment of this utility model, the repair capsule is made of a thin film material, and both ends of the repair capsule are bonded to the inner walls of the inner cavity on both sides.

[0009] In a preferred embodiment of this invention, the repair solution is epoxy resin.

[0010] Through the above technical solution, the film material is more prone to breakage after being stretched and twisted, so that the internal repair liquid can flow out. After the epoxy resin flows out and solidifies, it can reinforce and protect the easily cracked parts.

[0011] As a preferred technical solution of this utility model, the surface of the embedded adhesive strip is provided with a plurality of repair holes, and the repair holes are connected to the interior of the cavity.

[0012] Through the above technical solution, the repair fluid is discharged from multiple repair holes.

[0013] A door seal strip inspection tool includes a tool body, a door simulation frame is installed at the top of the tool body, a plurality of buckle detection slots are opened at the top of the tool body, a lifting rod is movably inserted into the bottom inner wall of each of the plurality of buckle detection slots, an installation slot is opened at the bottom of the tool body, the bottom of the lifting rod movably passes through the installation slot, and a compression spring is installed at the bottom of the lifting rod.

[0014] As a preferred embodiment of this utility model, a marking plate is engaged with the bottom of the mounting groove, and mounting plates are fixedly connected to both sides of the marking plate. The middle part of the mounting plate is connected to the bottom of the inspection fixture body by a through screw.

[0015] With the above technical solution, when inspecting the door rubber strip, multiple clips can be connected to the clip detection slot, thereby quickly and centrally inspecting multiple clips. Due to the large number and small size, it is not easy to observe the misaligned parts, so the indicator light makes the indication more obvious.

[0016] As a preferred embodiment of this utility model, the bottom end of the compression spring is fixedly connected to the top end of the marking plate, a push switch is installed inside the compression spring, and multiple indicator lights are installed on the surface of the inspection fixture body. Each of the multiple indicator lights corresponds to a multiple buckle detection slot, and the indicator lights are electrically connected to an external power supply through adjacent push switches.

[0017] With the above technical solution, one buckle detection slot corresponds to one indicator light, so that the location and quantity of unqualified buckles can be quickly identified by the on / off state of the indicator light.

[0018] As a preferred embodiment of this utility model, the embedded adhesive strip is embedded and installed inside the car door simulation frame, and the plurality of buckle detection slots are distributed along the direction of the car door simulation frame, and wheels are installed at the bottom of the inspection fixture body.

[0019] Through the above technical solution, the buckle detection groove simulates the buckle slot of the car door, so as to realistically simulate the installation process of the door rubber strip.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model incorporates EPDM rubber into the outer support strip, integrating its weather resistance (UV resistance, ozone resistance) to enhance the performance of the exposed strip. Nanoscale reinforcing fillers, such as graphene, are incorporated into the inner strip material to improve its tear resistance. Optimized materials are added based on the different usage environments and strength requirements of various parts of the strip assembly to improve the overall performance. The shape memory metal inner wires inside the outer support strip maintain the overall shape of the door strip, preventing localized aging and deformation that could affect the overall structural shape and ensure the sealing and functionality of other structures. Multiple shape memory metal support strips prevent significant changes in the outer support strip's state due to environmental variations, reducing the degree of expansion or contraction. Repair capsules and repair fluid inside the inner strip can release repair fluid to reinforce easily broken areas when the torsional deformation force is too great.

[0022] 2. This utility model, by setting a main body of the inspection tool into which the adhesive strip assembly is embedded, has multiple buckle detection slots, and has a liftable lifting rod inside. Together with the compression spring and push switch at the bottom, as well as corresponding indicator lights, it can quickly determine whether the adhesive strip buckle installation is qualified by observing the number of times the multiple indicator lights are on and off during the adhesive strip inspection stage. It is more intuitive and can quickly locate the number and location of faults. The marking plate and mounting plate at the bottom can be used to pull out and maintain the easily worn structures such as the compression spring and push switch. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the adhesive strip assembly of this utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure at point A;

[0025] Figure 3 This is a schematic diagram of the main body of the inspection tool of this utility model;

[0026] Figure 4 This is a schematic diagram of the buckle detection groove of this utility model;

[0027] Figure 5 for Figure 3 A schematic diagram of the structure at point B.

[0028] In the diagram: 1. Adhesive strip assembly; 2. Inspection fixture body; 3. Outer support adhesive strip; 4. Inner embedded adhesive strip; 5. Door simulation frame; 6. Indicator light; 7. Support sleeve; 8. Memory metal support strip; 9. Memory metal inner thread; 10. Inner cavity; 11. Repair capsule; 12. Repair fluid; 13. Repair hole; 14. Clip detection groove; 15. Wheel; 16. Lifting rod; 17. Mounting groove; 18. Compression spring; 19. Marking plate; 20. Mounting plate; 21. Screw; 22. Press switch. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1 to 5 This utility model provides a technical solution for a car door rubber strip and its inspection tool:

[0031] Example 1:

[0032] according to Figure 1 , Figure 2 As shown, a car door sealing strip includes a sealing strip assembly 1, which comprises an outer supporting sealing strip 3 and an inner embedded sealing strip 4. The outer supporting sealing strip 3 is made of 65% ethylene propylene diene monomer (EPDM) rubber, with 30% silicone rubber added to improve heat resistance, and 5% antioxidants (such as 2,6-di-tert-butyl-p-cresol) and ultraviolet absorbers (such as benzotriazoles). The two ends of the outer supporting sealing strip 3 are fixedly bonded to the two ends of the inner embedded sealing strip 4. The inner embedded sealing strip 4 is made of 70% styrene-butadiene rubber (SBR), with 25% graphene nanofiller added, and 5% plasticizer (dioctyl phthalate). The outer supporting sealing strip 3 has a support sleeve 7 inside, and a shape memory metal inner wire 9 is fixedly inserted at the center of the support sleeve 7. The inner wire is made of nickel-titanium alloy (Ni55Ti45), with a diameter of 1.2 mm and a phase transformation temperature set at 20℃ (austenite to martensite transformation temperature) to ensure that it can withstand room temperature. To maintain shape memory function, multiple sets of shape memory metal support strips 8 are welded and fixed at equal intervals on the outer wall of the support sleeve 7. These strips are made of nickel-titanium alloy wire (0.8 mm in diameter) and are evenly distributed radially. The spacing between each set of support strips is 8 mm, and the welding angle with the support sleeve 7 is 60° to ensure uniform support force. An inner cavity 10 is opened inside the embedded adhesive strip 4. A repair capsule 11 is placed inside the inner cavity 10. The repair capsule 11 is made of polyvinyl alcohol (PVA) film with a thickness of 50 μm. The repair capsule 11 is filled with repair liquid 12, in which epoxy resin (E-51) and curing agent (triethanolamine) are mixed at a mass ratio of 10:1.

[0033] Multiple memory metal support strips 8 are fixedly connected to a support block at one end away from the support sleeve 7. The support block is fixedly bonded to the inner wall of the outer support strip 3. The repair capsule 11 is made of film material. Both ends of the repair capsule 11 are bonded to the inner walls of both sides of the inner cavity 10. The repair liquid 12 is epoxy resin. Multiple repair holes 13 are opened on the surface of the embedded adhesive strip 4. The repair holes 13 are connected to the inside of the inner cavity 10.

[0034] In practical use, this utility model relates to a car door rubber strip and its inspection tool. During actual use, the outer support rubber strip 3 is exposed to sunlight and rain. Therefore, EPDM rubber is incorporated into the outer support rubber strip 3 to combine its weather resistance (UV resistance, ozone resistance) and enhance the performance of the exposed strip. Simultaneously, nano-level reinforcing fillers, such as graphene, are incorporated into the material of the inner rubber strip 4 to improve its tear resistance. When inserted into the door groove, its resistance to deformation and fatigue is increased, reducing the probability of deformation and breakage, and extending its service life. In extremely high or low temperatures, the outer support rubber strip 3 undergoes certain deformation, expanding or contracting. At this time, the multiple memory metal support strips 8 inside will adjust according to the initial design. The outer support strip 3 is pulled to prevent significant changes in its state due to environmental changes, reducing the degree of expansion or contraction deformation and maintaining the sealing ability of the strip. The internal shape memory metal inner wire 9 will be fixed according to the initial shape of the strip when it is embedded in the door, reducing the possibility of overall deformation due to local deformation. The inner cavity 10 of the embedded strip 4 is filled with a repair capsule 11. When the embedded strip 4 is installed in the door slot, if the embedded strip 4 is twisted and deformed to a large extent and there is a risk of cracking, the twisting force will deform the structure of the inner cavity 10, causing the repair capsule 11 made of the inner film to rupture. The repair fluid 12 inside will flow out from multiple repair holes 13 and wrap around the easily broken parts of the embedded strip 4, thereby reinforcing and protecting the easily broken parts and preventing breakage.

[0035] Example 2:

[0036] Based on Example 1, such as Figure 1 and Figure 2As shown, a door seal strip inspection tool includes a tool body 2. A door simulation frame 5 is mounted on the top of the tool body 2. Multiple snap-fit ​​detection slots 14 are formed on the top of the tool body 2, each 2.2 mm wide (±0.05 mm) and 5 mm deep, with spacing distributed according to the curvature of the door simulation frame (minimum spacing 15 mm, maximum spacing 30 mm). Lifting rods 16 are movably inserted into the inner walls of the bottom of each of the multiple snap-fit ​​detection slots 14. An installation groove 17 is formed at the bottom of the tool body 2. The bottom of the lifting rods 16 movably passes through the installation groove 17. A compression spring 18 is installed at the bottom of the lifting rods 16. A marking plate 19 is engaged with the bottom of the installation groove 17. Mounting plates 20 are fixedly connected to both sides of the 9. The middle part of the mounting plate 20 is connected to the bottom of the fixture body 2 by a through screw 21. The bottom of the compression spring 18 is fixedly connected to the top of the marking plate 19. A push switch 22 is installed inside the compression spring 18. Multiple indicator lights 6 are installed on the surface of the fixture body 2. The multiple indicator lights 6 correspond one-to-one with multiple buckle detection slots 14. The indicator lights 6 are electrically connected to an external power supply through adjacent push switches 22. An embedded rubber strip 4 is embedded in the interior of the car door simulation frame 5. Multiple buckle detection slots 14 are distributed along the direction of the car door simulation frame 5. A wheel 15 is installed at the bottom of the fixture body 2.

[0037] In practical use, this utility model of a car door rubber strip and its inspection tool involves first installing the rubber strip assembly 1 in the car door simulation frame 5 of the inspection tool body 2 during the inspection of the rubber strip assembly 1. Multiple clips of the rubber strip assembly 1 are connected to the clip detection grooves 14 of the car door simulation frame 5 to verify whether the rubber strip clips can be accurately fixed and installed. During inspection, when the clips can be smoothly inserted into the clip detection grooves 14, the clips will cause the lifting rod 16 to descend, thereby pressing the compression spring 18 at the bottom. This compresses the internal push switch 22, triggering the indicator light 6 on one side. When the indicator light 6 illuminates during testing, it will only illuminate when the buckles are successfully connected and installed. The operator can quickly determine whether the multiple buckles of the current adhesive strip are qualified based on the number of times the indicator light 6 is on and off. When the structure of the push switch 22 at the bottom of the buckle detection groove 14 malfunctions, a code is marked on the marking plate 19 beforehand. The mounting plates 20 on both sides are removed by loosening the screws 21, and the marking plate 19 is disassembled. This allows the lifting rod 16, the push switch 22, and the compression spring 18 structure to be pulled out as a whole for inspection and maintenance of the faulty structure.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A vehicle door bead comprising a bead assembly (1), characterized in that: The adhesive strip assembly (1) includes an outer support adhesive strip (3) and an inner embedded adhesive strip (4). The two ends of the outer support adhesive strip (3) are fixedly bonded to the two ends of the inner embedded adhesive strip (4). The outer support adhesive strip (3) has a support sleeve (7) inside. A memory metal inner wire (9) is fixedly inserted at the center of the support sleeve (7). Multiple sets of memory metal support strips (8) are welded and fixed at equal intervals on the outer wall of the support sleeve (7). The inner embedded adhesive strip (4) has an inner cavity (10) inside. A repair capsule (11) is placed inside the inner cavity (10). The repair capsule (11) is filled with repair fluid (12).

2. A door gasket as defined in claim 1, wherein: One end of each of the memory metal support strips (8) away from the support sleeve (7) is fixedly connected to a support block, and the support block is fixedly bonded to the inner wall of the outer support strip (3).

3. A door gasket as defined in claim 1 wherein: The repair capsule (11) is made of thin film material, and the two ends of the repair capsule (11) are bonded to the inner walls of the two sides of the inner cavity (10).

4. The door gasket of claim 1 wherein: The repair solution (12) is epoxy resin.

5. The door gasket of claim 1 wherein: The surface of the embedded adhesive strip (4) is provided with a plurality of repair holes (13), and the repair holes (13) are connected to the interior of the inner cavity (10).

6. A door profile gauge suitable for use with a door profile according to any one of claims 1 to 5, characterized in that: The fixture includes a main body (2), a car door simulation frame (5) is installed on the top of the main body (2), a plurality of buckle detection slots (14) are opened on the top of the main body (2), a lifting rod (16) is movably inserted into the inner wall of the bottom end of the plurality of buckle detection slots (14), an installation slot (17) is opened at the bottom end of the main body (2), the bottom of the lifting rod (16) movably passes through the installation slot (17), and a compression spring (18) is installed at the bottom end of the lifting rod (16).

7. A door seal inspection tool according to claim 6, characterized in that: The bottom of the mounting groove (17) is engaged with a marking plate (19), and both sides of the marking plate (19) are fixedly connected with mounting plates (20). The middle part of the mounting plate (20) is installed and connected to the bottom of the inspection fixture body (2) by a through screw (21).

8. A vehicle door moulding gauge according to claim 7, wherein: The bottom end of the compression spring (18) is fixedly connected to the top end of the marking plate (19). A push switch (22) is installed inside the compression spring (18). Multiple indicator lights (6) are installed on the surface of the inspection fixture body (2). Each of the multiple indicator lights (6) corresponds to a multiple buckle detection slot (14). The indicator lights (6) are electrically connected to an external power supply through adjacent push switches (22).

9. A vehicle door moulding gauge according to claim 8, wherein: The embedded adhesive strip (4) is embedded in the interior of the car door simulation frame (5), and multiple buckle detection slots (14) are distributed along the direction of the car door simulation frame (5). The bottom end of the inspection fixture body (2) is equipped with wheels (15).

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