Fast-assembly type automobile injection molding part

Abstract

The invention discloses a fast-assembly type automobile injection molding part, and relates to the technical field of automobile injection molding parts, the fast-assembly type automobile injection molding part comprises a wheel cover injection molding part body, and the edge of the outer surface of the wheel cover injection molding part body is fixedly connected with a sealing gasket. The sealing gasket on the wheel cover injection molding part body is in soft contact with the frame, so that in the running process of an automobile, if objects such as stones on the road collide with the wheel cover injection molding part body, the sealing gasket can absorb and disperse vibration energy, hard contact between the wheel cover injection molding part body and the frame is avoided, vibration transmission is reduced, and sound insulation can be assisted; noise generated when wheels run is prevented from being transmitted into a vehicle, the driving comfort is improved, in addition, a gap between the wheel cover injection-molded part body and a frame can be sealed, then rainwater, dust and other impurities can be prevented from entering the gap between the wheel cover injection-molded part body and the frame, the situation that water makes contact with a metal part of the frame, and consequently metal corrosion is caused is reduced, and the service life of the vehicle is prolonged. Meanwhile, abrasion of dust accumulation to the frame is reduced, and the effect of protecting the frame is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile injection molding parts, in particular to a quick-install automobile injection molding part. Background Art

[0002] Motor vehicles, currently the most common means of transportation, are equipped with a variety of protective features to ensure vehicle safety and longevity. Among these, wheel cover injection moldings, key components for protecting the chassis and wheel areas of motor vehicles, are primarily installed on the vehicle frame in the wheel area. They are typically injection-molded from a single plastic material, with a structural design primarily focused on basic mudguard protection. Installation generally relies on traditional rigid screw connections. During assembly, traditional wheel cover injection moldings require multiple steps. Initial positioning begins with manual or auxiliary equipment aligning the wheel cover with the pre-set mounting holes on the vehicle frame. Subsequently, tools such as an electric drill or screwdriver are used to align the threaded holes at the connection points between the wheel cover and the frame, inserting metal screws for rigid fastening. Additional shims are sometimes required to compensate for installation gaps. During this process, operators must repeatedly adjust the wheel cover injection molding position to ensure hole alignment, increasing installation time and requiring high assembly precision. Hole misalignment can easily lead to installation failure or component damage. In addition, the structural design of existing wheel cover injection moldings is that the edges that contact the frame are mostly in direct contact, and there is no special buffering or sealing structure. In addition, the bottom of the wheel cover body is subjected to the impact of road stones and heat radiation from the engine compartment for a long time, and the edges often deform or crack due to insufficient material strength.

[0003] Traditional injection-molded wheel covers have gradually exposed numerous deficiencies in practical applications. Their installation efficiency is low, and their reliance on screws for fastening requires individual tightening, resulting in a cumbersome and time-consuming process that struggles to adapt to the rapid pace of large-scale production in the automotive industry. Furthermore, manual operation can easily lead to screw stripping or cracking of the molded wheel cover due to uneven force, resulting in increased rework. Furthermore, due to insufficient sealing and shock absorption, the direct contact between the molded wheel cover and the vehicle frame causes vibrations from road stones hitting the wheel cover to be directly transmitted to the vehicle body during driving, causing low-frequency noise and impacting ride comfort. Furthermore, the gap between the molded wheel cover and the vehicle frame lacks effective sealing, allowing rainwater and dust to easily penetrate the metal components of the frame, accelerating rust and shortening the vehicle's service life. Furthermore, structural strength and protective reliability are poor. The molded wheel cover is integrally molded, making it susceptible to thermal deformation in high-temperature environments. This increases the gap between the molded wheel cover and the frame, making it ineffective in protecting the chassis from stone impacts. Moreover, traditional screw connections are prone to loosening under long-term vibration, further reducing the protective effect of the wheel cover and even causing safety hazards such as component detachment. Installation and positioning are difficult, and manual support is required to maintain the position before fixing. Hole position deviation is easy to cause due to operational errors, which not only prolongs assembly time, but may also cause cracking of the injection-molded parts of the automobile wheel cover or damage of the threaded holes on the frame due to forced screwing, increasing maintenance costs. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a quick-install automobile injection molded part.

[0005] The technical solution is as follows: A quick-install automobile injection molded part, comprising a wheel cover injection molded part body, wherein the outer surface edge of the wheel cover injection molded part body is fixedly connected with a sealing gasket; The wheel cover injection molding body is provided with a plurality of mounting holes, and each mounting hole is provided with a quick-install assembly, which includes a quick-install nail tube installed in the mounting hole of the wheel cover injection molding body, and the outer surface of one end of the quick-install nail tube passing through the mounting hole of the wheel cover injection molding body is provided with a plurality of expansion grooves arranged in a filling array, the inner side wall of each expansion groove is fixedly connected with an expansion sheet, the inner surface of each expansion sheet is fixedly connected with a bevel block, the interior of the quick-install nail tube is plugged with a hammer nail, and the outer surface of the hammer nail is fixedly connected with a plurality of bevel rings arranged in a linear array, and the bevel of the bevel ring is parallel to the bevel of the bevel block.

[0006] Furthermore, the sealing gasket is made of soft rubber material.

[0007] Furthermore, the wheel cover injection molding body is integrally injection molded.

[0008] Furthermore, a reinforcing assembly is provided on the wheel cover injection molding body, and the reinforcing assembly includes a mounting cavity shell fixedly connected to the bottom of the inner side walls on both sides of the wheel cover injection molding body, and metal ribs are fixedly connected to the interior of the two mounting cavity shells.

[0009] Furthermore, a socket is provided at the bottom of the installation cavity shell, the upper end of the metal rib is inserted into the socket, and the metal rib is fixed to the installation cavity shell by bolts.

[0010] Furthermore, a quick-release nail tube passes through the mounting hole of the wheel cover injection molded part body and is fixedly connected to a plurality of inverted bevel blocks arranged in a circular array. A recovery groove is provided inside the quick-release nail tube, and a boss is provided at the bottom of the hammer nail, which can be embedded in the recovery groove.

[0011] Furthermore, the cross-section of the reverse bevel block is triangular, the bottom surface of which is a plane and the plane of the bottom surface conflicts with the outer surface of the wheel cover injection molding body.

[0012] Furthermore, a circle of flange is provided on the quick-install nail tube, and the flange is located below the reverse buckle bevel block, and the flange contacts the inner surface of the wheel cover injection molding body.

[0013] As described above, the beneficial effects of the quick-install automotive injection molded part of the present invention are as follows: The sealing gasket on the wheel cover injection molding body is in soft contact with the vehicle frame. When the vehicle is driving, if objects such as stones on the road collide with the wheel cover injection molding body, the sealing gasket can absorb and disperse the vibration energy, avoiding hard contact between the wheel cover injection molding body and the frame, reducing vibration transmission, and assisting in sound insulation, blocking the noise generated by the wheels when driving from being transmitted into the vehicle, thereby improving driving comfort. In addition, it can also seal the gap between the wheel cover injection molding body and the frame, thereby preventing impurities such as rainwater and dust from entering the gap between the wheel cover injection molding body and the frame, reducing the situation where water contacts the metal parts of the frame and causes metal corrosion, and at the same time reducing the wear of the frame caused by dust accumulation, thereby playing a role in protecting the frame; The metal ribs can reinforce the bottom of the wheel cover injection molded part to prevent the bottom edge of the wheel cover injection molded part from being overheated and deformed. This can also prevent the wheel cover injection molded part from deforming and causing a loose fit with the vehicle frame, which in turn prevents the wheel cover injection molded part from failing to protect the vehicle frame. This improves the protective effect of the wheel cover injection molded part on the vehicle frame. Inserting the quick-release nail tube into the mounting hole of the vehicle frame achieves a preliminary positioning effect. The preliminary insertion of the quick-release nail tube into the mounting hole of the vehicle frame can stabilize the wheel cover injection molded part body, preventing the wheel cover injection molded part body from falling during the process of fixing the wheel cover injection molded part body, thereby improving the stability and convenience of the installation process; The wheel cover injection molding body can be quickly fixed by simply tapping, thereby improving the installation efficiency of the wheel cover injection molding body. In addition, the barb design of the expansion piece can provide a more secure connection effect, and stable fixation is achieved through the friction between the barb and the inner wall of the installation hole. It can better withstand the vibration and load generated during the driving of the car and reduce the risk of loosening of the wheel cover injection molding body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall components of the present invention; Figure 2 This is a three-dimensional schematic diagram of the wheel cover injection molding body, quick-install nail tube and other components of the present invention; Figure 3 This is a three-dimensional schematic diagram of the wheel cover injection molding body, mounting cavity shell, metal ribs and other components of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the component at center A; Figure 5 It is a schematic diagram of a cross-sectional three-dimensional tube of the quick-install nail tube, hammer nail and other components of the present invention; Figure 6 It is a cross-sectional perspective schematic diagram of the expansion piece, ramp block and other components of the present invention; Figure 7 This is a three-dimensional schematic diagram of the components of the present invention, such as the inverted bevel block, expansion piece, and bevel block; Figure 8 It is a three-dimensional schematic diagram of the hammer nail and the bevel ring of the present invention.

[0015] Wherein, the accompanying drawings in the present invention are: 1. Wheel cover injection molding body; 2. Sealing gasket; Reinforcement components: 31, mounting cavity shell; 32, metal ribs; Quick-release components: 41. Quick-release nail tube; 42. Reverse bevel block; 43. Recovery slot; 44. Deployment slot; 45. Expansion piece; 46. Bevel block; 47. Hammer nail; 48. Bevel ring. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 3As shown, a quick-install automobile injection molding part includes a wheel cover injection molding part body 1, and a sealing gasket 2 is fixedly connected to the outer surface edge of the wheel cover injection molding part body 1. The sealing gasket 2 is set to a soft rubber material and is used to enable the wheel cover injection molding part body 1 to be in soft contact with the frame when assembled on the frame.

[0018] It should be noted that the material of the wheel cover injection molding body 1 is mainly plastic, the wheel cover injection molding body 1 is integrally injection-molded, and the wheel cover injection molding body 1 is specifically assembled in the frame area where the wheel is located. In addition, the shape of the wheel cover injection molding body 1 is not limited to the single shape shown in the figure, and its style can be adapted to the frame structure of the assembled vehicle as needed. A plurality of mounting holes are provided on the wheel cover injection molding body 1, and the mounting holes correspond to the mounting holes on the frame of the assembled wheel cover injection molding body 1.

[0019] Specifically, in the process of installing the wheel cover injection molding body 1 on the vehicle, after the staff takes the wheel cover injection molding body 1, they directly embed the wheel cover injection molding body 1 into the frame area where the wheel is located, so that the wheel cover injection molding body 1 is fitted with the frame. When the wheel cover injection molding body 1 is assembled on the frame, the sealing gasket 2 on the wheel cover injection molding body 1 will be in soft contact with the frame. During the driving of the car, if objects such as stones on the road surface collide with the wheel cover injection molding body 1, the sealing gasket 2 can absorb and disperse the vibration energy, avoid the wheel cover injection molding body 1 from making hard contact with the frame, reduce vibration transmission, assist in sound insulation, and block the noise generated when the wheel is running from being transmitted into the car, thereby improving driving comfort. In addition, it can also seal the gap between the wheel cover injection molding body 1 and the frame, thereby preventing impurities such as rainwater and dust from entering the gap between the wheel cover injection molding body 1 and the frame, reducing the situation where water contacts the metal part of the frame to cause metal corrosion, and at the same time reducing the wear of the frame caused by dust accumulation, thereby protecting the frame.

[0020] like Figure 1 and Figure 3 As shown, the wheel cover injection molded part body 1 is provided with a reinforcement assembly for preventing deformation of the wheel cover injection molded part body 1. The reinforcement assembly includes a mounting cavity shell 31 fixedly connected to the bottom of the inner sidewalls of the wheel cover injection molded part body 1 on both sides. Metal ribs 32 are fixedly connected to the interior of each mounting cavity shell 31. Specifically, the bottom of the mounting cavity shell 31 is provided with a socket, and the upper end of the metal rib 32 is inserted into the socket and fixed to the mounting cavity shell 31 by bolts. The metal rib 32 is made of metal material.

[0021] Specifically, after the wheel cover injection molding body 1 is assembled on the vehicle frame, since the bottom of the wheel cover injection molding body 1 is close to the vehicle chassis, the metal ribs 32 in the installation cavity shell 31 are also located close to the vehicle chassis. Compared with the existing wheel cover injection molding body 1, the bottom of the wheel cover injection molding body 1 can be reinforced by the metal ribs 32 to prevent the bottom edge of the wheel cover injection molding body 1 from overheating and deformation, thereby avoiding the deformation of the wheel cover injection molding body 1 resulting in a loose fit with the vehicle frame and the inability to protect the frame, thereby improving the protective effect of the wheel cover injection molding body 1 on the vehicle frame.

[0022] It should be noted that the metal ribs 32 are adapted to the bottom shape of the wheel cover injection molded body 1, effectively reinforcing the bottom of the wheel cover injection molded body 1. Furthermore, the shape of the metal ribs 32 can be designed to suit chassis heights. For vehicles with low chassis, the metal ribs 32 can protrude slightly downward from the chassis, not only providing further protection for the interface between the wheels and the chassis, but also acting as fenders to prevent the wheels from throwing mud and sand onto the chassis. For vehicles with high chassis, the metal ribs 32 do not need to protrude downward from the chassis.

[0023] like Figures 4 to 8 As shown, each mounting hole of the wheel cover injection molded part 1 is provided with a quick-install assembly. The quick-install assembly includes a quick-install nail tube 41 installed in the mounting hole of the wheel cover injection molded part 1. The quick-install nail tube 41 passes through the mounting hole of the wheel cover injection molded part 1. One end surface of the quick-install nail tube 41 passing through the mounting hole of the wheel cover injection molded part 1 is fixedly connected to a plurality of reverse bevel blocks 42 arranged in a circular array. The reverse bevel blocks 42 have a triangular cross-section and a flat bottom surface, which contacts the outer surface of the wheel cover injection molded part 1. The quick-install nail tube 41 is provided with a circle of flanges, which are located below the reverse bevel blocks 42 and contact the inner surface of the wheel cover injection molded part 1. The bottom surface of the flange of the quick-install nail tube 41 is provided with a recovery groove 43. The outer surface of one end of the quick-install nail tube 41 that passes through the mounting hole of the wheel cover injection molded part body 1 is provided with a plurality of expansion grooves 44 arranged in an array. An expansion piece 45 is fixedly connected to the inner sidewall of each expansion groove 44. Each expansion piece 45 is fixedly connected to the inner surface of a bevel block 46. A hammer nail 47 is inserted into the interior of the quick-install nail tube 41. The outer surface of each hammer nail 47 is fixedly connected to a plurality of bevel rings 48 arranged in a linear array. A boss is provided on the bottom of the hammer nail 47, which can be embedded in the recovery groove 43.

[0024] It should be noted that, referring to Figure 5As shown, the top surface of the expansion piece 45 is fixedly connected to the top of the expansion slot 44, and the other three surfaces of the expansion piece 45 are not connected to the expansion slot 44. The inclined surface of the inclined surface block 46 faces downward, and the inclined surface of the inclined surface ring 48 faces upward. The inclined surface of the inclined surface block 46 is parallel to the inclined surface of the inclined surface ring 48, so that when the inclined surface ring 48 pushes the expansion piece 45, the expansion piece 45 can be expanded outward. After the expansion piece 45 is expanded outward, it passes through the expansion slot 44 and protrudes from the outer surface of the quick-install nail tube 41, forming a barb shape.

[0025] Specifically, before the wheel cover injection molding body 1 is assembled to the vehicle frame of the wheel cover injection molding body 1, it is necessary to first insert the quick-release nail tube 41 into the mounting hole of the wheel cover injection molding body 1. When the quick-release nail tube 41 is inserted into the mounting hole of the wheel cover injection molding body 1, it is necessary to make the reverse buckle bevel 42 pass through the mounting hole of the wheel cover injection molding body 1. In the process of the reverse buckle bevel 42 passing through the mounting hole of the wheel cover injection molding body 1, the inclined surface of the reverse buckle bevel 42 will contact the inner wall of the mounting hole of the wheel cover injection molding body 1. Because the wheel cover injection molding body 1 is made of plastic, the mounting hole of the wheel cover injection molding body 1 will undergo elastic deformation. After the reverse buckle bevel 42 passes through the mounting hole of the wheel cover injection molding body 1, the plane of the reverse buckle bevel 42 will contact the outer surface of the wheel cover injection molding body 1, and the flange will contact the inner surface of the wheel cover injection molding body 1, thereby fixing the quick-release nail tube 41 on the wheel cover injection molding body 1. When the wheel cover injection molding body 1 is installed on the vehicle frame, the quick-release nail tube 41 is inserted into the mounting hole of the vehicle frame to achieve a preliminary positioning effect, and the quick-release nail tube 41 is initially inserted into the mounting hole of the vehicle frame to preliminarily fix the wheel cover injection molding body 1, preventing the wheel cover injection molding body 1 from falling off during the process of fixing the wheel cover injection molding body 1, thereby improving the stability and convenience of the installation process.

[0026] It should be noted that the size of the quick-release nail tube 41 is adapted to the diameter of the mounting hole on the vehicle frame. In addition, during the assembly of the wheel cover injection molding body 1, a portion of the quick-release nail tube 41 in the middle of the wheel cover injection molding body 1 can be first inserted into the mounting hole of the vehicle frame, and then the quick-release nail tubes 41 on the left and right sides of the wheel cover injection molding body 1 can be inserted one by one into the mounting holes of the vehicle frame, thereby enabling the wheel cover injection molding body 1 to be preliminarily fixed to the vehicle frame.

[0027] Then, use a metal hammer to strike the hammer nail 47, so that the hammer nail 47 continues to move inside the quick-install nail tube 41 toward the inside of the mounting hole until the flange on the bottom surface of the hammer nail 47 is embedded in the inside of the recovery groove 43. During the movement of the hammer nail 47, the hammer nail 47 will drive the bevel ring 48 on its surface to move inside the quick-install nail tube 41, and the bevel of the bevel ring 48 will push the bevel block 46. After the bevel block 46 is pushed by the bevel ring 48, the expansion piece 45 will open outward inside the expansion groove 44. After the expansion piece 45 opens outward, a barb will be formed on the surface of the quick-install nail tube 41. The barbed quick-install nail tube 41 will conflict with the mounting hole of the frame, thereby restricting the quick-install nail tube 41 within the mounting hole of the frame. The wheel cover injection molding body 1 can be fixed to the vehicle frame through the limiting effect of the quick-install nail tube 41 and the mounting hole. The wheel cover injection molding body 1 can be quickly fixed by simple knocking, thereby improving the installation efficiency of the wheel cover injection molding body 1. In addition, the barb design of the expansion piece 45 can provide a more secure connection effect, and stable fixation is achieved through the friction generated by the barb and the inner wall of the mounting hole, which can better withstand the vibration and load generated during the driving of the car and reduce the risk of loosening of the wheel cover injection molding body 1.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-install automobile injection molded part, comprising a wheel cover injection molded part body (1), characterized in that: A sealing gasket (2) is fixedly connected to the outer surface edge of the wheel cover injection molded part body (1); A plurality of mounting holes are provided on the wheel cover injection molding body (1), and a quick-install assembly is provided on each mounting hole. The quick-install assembly includes a quick-install nail tube (41) installed in the mounting hole of the wheel cover injection molding body (1), and a plurality of expansion grooves (44) arranged in a filling array are provided on the outer surface of one end of the quick-install nail tube (41) passing through the mounting hole of the wheel cover injection molding body (1). An expansion sheet (45) is fixedly connected to the inner side wall of each expansion groove (44), and a bevel block (46) is fixedly connected to the inner surface of each expansion sheet (45). A hammer nail (47) is inserted into the interior of the quick-install nail tube (41), and a plurality of bevel rings (48) arranged in a linear array are fixedly connected to the outer surface of the hammer nail (47), and the bevel of the bevel ring (48) is parallel to the bevel of the bevel block (46).

2. The quick-install automotive injection molded part according to claim 1, characterized in that: The sealing gasket (2) is made of soft rubber.

3. The quick-install automotive injection molded part according to claim 1, characterized in that: The wheel cover injection molding body (1) is integrally injection molded.

4. The quick-install automotive injection molded part according to claim 1, characterized in that: A reinforcing assembly is provided on the wheel cover injection molding body (1), and the reinforcing assembly includes a mounting cavity shell (31) fixedly connected to the bottom of the inner side walls on both sides of the wheel cover injection molding body (1), and metal ribs (32) are fixedly connected inside the two mounting cavity shells (31).

5. The quick-install automobile injection molded part according to claim 4, characterized in that: The bottom of the installation cavity shell (31) is provided with an insertion hole, the upper end of the metal rib (32) is inserted into the insertion hole, and the metal rib (32) is fixed to the installation cavity shell (31) by bolts.

6. The quick-install automotive injection molded part according to claim 1, characterized in that: A quick-install nail tube (41) passes through the mounting hole of the wheel cover injection molded part body (1), and is fixedly connected to a plurality of reverse buckle bevel blocks (42) arranged in a ring array. A recovery groove (43) is provided inside the quick-install nail tube (41), and a boss is provided at the bottom of the hammer nail (47), and the boss can be embedded in the recovery groove (43).

7. The quick-install automobile injection molded part according to claim 1, characterized in that: The cross-sectional shape of the reverse buckle bevel (42) is triangular, the bottom surface of which is a plane and the plane of the bottom surface conflicts with the outer surface of the wheel cover injection molding body (1).

8. The quick-install automobile injection molded part according to claim 7, characterized in that: A flange is provided on the quick-install nail tube (41), the flange is located below the reverse buckle bevel (42), and the flange contacts the inner surface of the wheel cover injection molding body (1).

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