Cabin temperature-resistant injection-molded cover plate with reinforcing ribs

Abstract

The utility model relates to the technical field of engine room processing provides a kind of engine room temperature-resistant injection-molded cover plate with reinforcing rib, including cover plate body, the inside fixed reinforcing structure of cover plate body, the reinforcing structure includes horizontal rib, vertical rib and vertical rib, the horizontal rib is evenly fixed in the top of cover plate body.The utility model is provided with reinforcing structure, by horizontal rib, vertical rib and vertical rib constitute three-dimensional grid framework, greatly improve the carrying capacity and bending resistance, deformation resistance of cover plate body, and the reinforcing rib of equidistant distribution can ensure that material is uniformly contracted in injection cooling process, effectively inhibit the warping of cover plate body due to internal stress uneven, ensure the dimensional stability and assembly accuracy of product, realize the device has the function of reinforcing cover plate body, improve the durability of the engine room temperature-resistant injection-molded cover plate with reinforcing rib when using.

Description

Technical Field

[0001] This utility model relates to the field of engine room processing technology, and in particular to a heat-resistant injection molded cover plate for engine room with reinforcing ribs. Background Technology

[0002] In the manufacturing of various equipment nacelle components, high-temperature resistant injection molded covers, as key protective structural components, need to operate for extended periods in complex environments with high temperatures and vibrations. However, their molding quality and durability have always been prominent issues. Traditional molding processes, due to the lack of systematic consideration of the coupling effects of multiple fields such as temperature, stress, and flow, result in poor dimensional stability of the molded covers under high-temperature conditions, making them prone to defects such as cracks and shrinkage marks. These problems not only increase the frequency of product maintenance and replacement but may also affect the overall operational safety of the equipment. Therefore, it is necessary to design a high-temperature resistant injection molded cover for the nacelle with reinforcing ribs.

[0003] To address this, patent CN220147437U discloses an automotive engine compartment cover. The cover is positioned between the engine compartment and a hood, covering the engine compartment. The cover includes a main body and a connecting part. The main body includes a functional opening, and the connecting part is detachably connected to at least a portion of the outer periphery of the main body. One end of the connecting part, away from the main body, is connected to the vehicle body. The automotive engine compartment cover according to this application's embodiment can prevent the complex structure within the engine compartment from interfering with the replacement, repair of parts, or the addition of fluids.

[0004] While the aforementioned car engine compartment cover facilitates the inspection and maintenance of parts during use, it is prone to cracking and damage when subjected to impact. Therefore, it is necessary to design a heat-resistant injection-molded engine compartment cover with reinforcing ribs. Utility Model Content

[0005] The purpose of this invention is to provide a cabin heat-resistant injection molded cover with reinforcing ribs to solve the problem that existing cabin heat-resistant injection molded cover plates are prone to cracking and damage when subjected to impact.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cabin temperature-resistant injection molded cover with reinforcing ribs, including a cover body;

[0007] The cover plate body is internally fixed with a reinforcing structure, which includes transverse ribs, longitudinal ribs and vertical ribs. The transverse ribs are uniformly fixed to the top of the cover plate body, and the longitudinal ribs are uniformly fixed to the interior of the cover plate body below the transverse ribs. Vertical ribs are fixed between adjacent transverse ribs and longitudinal ribs.

[0008] The top end of the cover plate body is fixed with a wear-resistant structure, and the bottom end of the cover plate body is fixed with a heat-resistant structure.

[0009] The bottom end of the heat-resistant structure is fixed with a sealing structure.

[0010] Furthermore, the transverse ribs, longitudinal ribs, and vertical ribs are evenly distributed inside the cover plate body.

[0011] Furthermore, the wear-resistant structure includes a first adhesive layer, a first wear-resistant layer, and a second wear-resistant layer. The first adhesive layer is fixed to the top of the cover plate body, the top of the first adhesive layer is fixed with the first wear-resistant layer, and the top of the first wear-resistant layer is fixed with the second wear-resistant layer.

[0012] Furthermore, the first wear-resistant layer is a carbon fiber layer, and the second wear-resistant layer is a nylon layer.

[0013] Furthermore, the heat-resistant structure includes a second adhesive layer, a first heat-resistant layer, and a second heat-resistant layer. The second adhesive layer is fixed to the bottom end of the cover plate body, the bottom end of the second adhesive layer is fixed with the first heat-resistant layer, and the bottom end of the first heat-resistant layer is fixed with the second heat-resistant layer.

[0014] Furthermore, the first heat-resistant layer is a polyetheretherketone layer, and the second heat-resistant layer is a liquid crystal polymer layer.

[0015] Furthermore, the sealing structure includes a sealing seat, a connecting groove, a connecting strip, a sealing ring, and a hollow groove. The sealing seat is fixed to the edge of the bottom of the second heat-resistant layer. The bottom of the sealing seat has a connecting groove, and a connecting strip is provided inside the connecting groove. The bottom end of the connecting strip is fixed with a sealing ring, and a hollow groove is provided inside the sealing ring.

[0016] Furthermore, the connecting strip and the sealing seat are connected by an interference fit through a connecting groove.

[0017] The advantages of the heat-resistant injection-molded cover plate with reinforcing ribs provided by this utility model are as follows:

[0018] By incorporating a reinforced structure, the three-dimensional grid framework composed of transverse, longitudinal, and vertical ribs greatly enhances the load-bearing capacity, bending resistance, and deformation resistance of the cover plate body. The evenly spaced reinforcing ribs ensure uniform shrinkage of the material during injection molding and cooling, effectively suppressing warping of the cover plate body caused by uneven internal stress, ensuring the dimensional stability and assembly accuracy of the product, and enabling the device to facilitate the reinforcement of the cover plate body, thereby improving the durability of the reinforced cabin temperature-resistant injection molded cover plate during use.

[0019] By incorporating wear-resistant and heat-resistant structures, and through the combination of a first and second wear-resistant layer, the surface of the cover plate body is provided with a wear resistance life far exceeding that of a single material. The second wear-resistant layer on the surface has high hardness and a low coefficient of friction, effectively resisting scratches. The first wear-resistant layer underneath provides extremely high strength and toughness support, preventing damage to the underlying layer caused by impacts from hard objects. Both the first and second heat-resistant layers are top-grade high-performance heat-resistant materials. Their combination provides double thermal protection for the cover plate body, ensuring dimensional stability at high temperatures and preventing the cover plate body from softening, creeping, or permanently deforming in the high-temperature environment of the engine room. This ensures that it can always perform its installation and sealing functions normally, realizing that the device has wear-resistant and high-temperature resistant functions, and improving the service life of the engine room heat-resistant injection-molded cover plate with reinforcing ribs.

[0020] By incorporating a sealing structure and a hollow groove, the sealing ring undergoes elastic deformation. This hollow groove provides space for the sealing ring to deform, compensating for minor unevenness or dimensional tolerances at the mating surfaces between the cover plate and the mounting body, thus ensuring effective sealing. The interference fit between the connecting strip and the connecting groove enables quick assembly and disassembly without tools or with simple tools, while ensuring the strength of the connection. This gives the device the function of easily sealing the mounting surface, improving the sealing performance of the reinforced cabin temperature-resistant injection-molded cover plate during use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0023] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0025] Figure 5 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0026] Figure 6 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.

[0027] The reference numerals in the figure are as follows: 1. Cover plate body; 2. Reinforcing structure; 21. Transverse rib; 22. Longitudinal rib; 23. Vertical rib; 3. Wear-resistant structure; 31. First adhesive layer; 32. First wear-resistant layer; 33. Second wear-resistant layer; 4. Heat-resistant structure; 41. Second adhesive layer; 42. First heat-resistant layer; 43. Second heat-resistant layer; 5. Sealing structure; 51. Sealing seat; 52. Connecting groove; 53. Connecting strip; 54. Sealing ring; 55. Hollow groove. 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] Please see Figures 1-6 The present invention provides a cabin temperature-resistant injection molded cover with reinforcing ribs, including a cover body 1.

[0030] Reference Figures 2-6 The cover plate body 1 is internally fixed with a reinforcing structure 2, which includes transverse ribs 21, longitudinal ribs 22 and vertical ribs 23. The transverse ribs 21 are uniformly fixed at the top of the cover plate body 1, and the longitudinal ribs 22 are uniformly fixed inside the cover plate body 1 below the transverse ribs 21. Vertical ribs 23 are fixed between adjacent transverse ribs 21 and longitudinal ribs 22. The transverse ribs 21, longitudinal ribs 22 and vertical ribs 23 are evenly distributed inside the cover plate body 1.

[0031] This structure utilizes the "I-beam" principle, with transverse ribs 21, longitudinal ribs 22, and vertical ribs 23 intersecting each other, much like the web and flanges of an I-beam. This redistributes material from the less stressed central area to the more stressed edge area, thereby achieving the maximum moment of inertia of the cross section with the least amount of material and significantly improving bending stiffness. The transverse, longitudinal, and vertical ribs are interconnected to form a stable spatial truss structure. This structure can quickly disperse the impact force or load received locally to the entire cover plate, avoiding stress concentration and thus preventing the generation and propagation of cracks.

[0032] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5A wear-resistant structure 3 is fixed to the top of the cover plate body 1. The wear-resistant structure 3 includes a first adhesive layer 31, a first wear-resistant layer 32, and a second wear-resistant layer 33. The first adhesive layer 31 is fixed to the top of the cover plate body 1. The first wear-resistant layer 32 is fixed to the top of the first adhesive layer 31. The second wear-resistant layer 33 is fixed to the top of the first wear-resistant layer 32. A heat-resistant structure 4 is fixed to the bottom of the cover plate body 1. The first wear-resistant layer 32 is a carbon fiber layer. The second wear-resistant layer 33 is a nylon layer. The heat-resistant structure 4 includes a second adhesive layer 41, a first heat-resistant layer 42, and a second heat-resistant layer 43. The second adhesive layer 41 is fixed to the bottom of the cover plate body 1. The first heat-resistant layer 42 is fixed to the bottom of the second adhesive layer 41. The second heat-resistant layer 43 is fixed to the bottom of the first heat-resistant layer 42. The first heat-resistant layer 42 is a polyetheretherketone layer. The second heat-resistant layer 43 is a liquid crystal polymer layer.

[0033] The outermost second wear-resistant layer 33 has a high surface hardness. When an object rubs against it, it can resist micro-cutting and plastic deformation. This is the first line of defense. The first wear-resistant layer 32 serves as the second line of defense. Its extremely high specific strength and modulus ensure that even if the second wear-resistant layer 33 is slightly worn, the entire wear-resistant structure 3 will not fail rapidly due to the collapse of the bottom layer. The first adhesive layer 31 ensures that the two layers of materials are firmly bonded and work together. The glass transition temperature and melting point of the first heat-resistant layer 42 and the second heat-resistant layer 43 are much higher than those of ordinary plastics. Under the operating temperature of the cabin, they can still maintain a rigid state of glass or crystal, and will not transform into a highly elastic state or a molten state, thereby maintaining their shape and strength. The second adhesive layer 41 also uses a high-temperature resistant adhesive to ensure that the entire structure does not delaminate at high temperatures.

[0034] Reference Figures 1-6 The bottom end of the heat-resistant structure 4 is fixed with a sealing structure 5. The sealing structure 5 includes a sealing seat 51, a connecting groove 52, a connecting strip 53, a sealing ring 54, and a hollow groove 55. The sealing seat 51 is fixed at the edge of the bottom end of the second heat-resistant layer 43. The bottom of the sealing seat 51 is provided with a connecting groove 52. A connecting strip 53 is provided inside the connecting groove 52. The bottom end of the connecting strip 53 is fixed with a sealing ring 54. A hollow groove 55 is provided inside the sealing ring 54. The connecting strip 53 and the sealing seat 51 are connected by interference fit through the connecting groove 52.

[0035] The sealing seat 51 is fixedly installed at the bottom edge of the second heat-resistant layer 43. When the cover plate body 1 and the machine body are installed, the sealing ring 54 contacts and is compressed with the machine body. The compressed sealing ring 54 generates a continuous reaction force, which fits tightly against the sealing surface and blocks potential leakage paths. The hollow groove 55 can act as a buffer cavity. On the one hand, it makes the sealing ring 54 easier to compress and the pressure distribution more uniform. The interference fit between the connecting strip 53 and the connecting groove 52 provides a firm mechanical connection, preventing the sealing structure 5 from loosening under vibration environment and ensuring the long-term stability of the seal.

[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A cabin temperature-resistant injection molded cover with reinforcing ribs, comprising a cover body (1); Its features are: The cover plate body (1) is internally fixed with a reinforcing structure (2). The reinforcing structure (2) includes transverse ribs (21), longitudinal ribs (22) and vertical ribs (23). The transverse ribs (21) are uniformly fixed at the top of the cover plate body (1). The longitudinal ribs (22) are uniformly fixed inside the cover plate body (1) below the transverse ribs (21). Vertical ribs (23) are fixed between adjacent transverse ribs (21) and longitudinal ribs (22). The top end of the cover plate body (1) is fixed with a wear-resistant structure (3), and the bottom end of the cover plate body (1) is fixed with a heat-resistant structure (4). The bottom end of the heat-resistant structure (4) is fixed with a sealing structure (5).

2. The cabin heat-resistant injection molded cover plate with reinforcing ribs according to claim 1, characterized in that: The transverse ribs (21), longitudinal ribs (22), and vertical ribs (23) are distributed at equal intervals inside the cover plate body (1).

3. The cabin heat-resistant injection molded cover with reinforcing ribs according to claim 1, characterized in that: The wear-resistant structure (3) includes a first adhesive layer (31), a first wear-resistant layer (32), and a second wear-resistant layer (33). The first adhesive layer (31) is fixed to the top of the cover plate body (1). The first wear-resistant layer (32) is fixed to the top of the first adhesive layer (31), and the second wear-resistant layer (33) is fixed to the top of the first wear-resistant layer (32).

4. A cabin heat-resistant injection-molded cover with reinforcing ribs according to claim 3, characterized in that: The first wear-resistant layer (32) is a carbon fiber layer, and the second wear-resistant layer (33) is a nylon layer.

5. A cabin heat-resistant injection-molded cover plate with reinforcing ribs according to claim 1, characterized in that: The heat-resistant structure (4) includes a second adhesive layer (41), a first heat-resistant layer (42), and a second heat-resistant layer (43). The second adhesive layer (41) is fixed to the bottom end of the cover plate body (1). The bottom end of the second adhesive layer (41) is fixed with the first heat-resistant layer (42), and the bottom end of the first heat-resistant layer (42) is fixed with the second heat-resistant layer (43).

6. A cabin heat-resistant injection-molded cover with reinforcing ribs according to claim 5, characterized in that: The first heat-resistant layer (42) is a polyether ether ketone layer, and the second heat-resistant layer (43) is a liquid crystal polymer layer.

7. A cabin heat-resistant injection-molded cover with reinforcing ribs according to claim 1, characterized in that: The sealing structure (5) includes a sealing seat (51), a connecting groove (52), a connecting strip (53), a sealing ring (54), and a hollow groove (55). The sealing seat (51) is fixed at the edge of the bottom of the second heat-resistant layer (43). The bottom of the sealing seat (51) is provided with a connecting groove (52). The connecting groove (52) is provided with a connecting strip (53) inside. The bottom end of the connecting strip (53) is fixed with a sealing ring (54). The sealing ring (54) is provided with a hollow groove (55) inside.

8. A cabin heat-resistant injection-molded cover with reinforcing ribs according to claim 7, characterized in that: The connecting strip (53) and the sealing seat (51) are connected by an interference fit through the connecting groove (52).

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