Thermocuring metal blanking cap

Abstract

The utility model discloses a thermocuring metal blanking cap which comprises an upper metal blanking cap and an external thread bolting head integrally formed in the center of the bottom end of the upper metal blanking cap, an upper hexagonal head is installed at the top end of the upper metal blanking cap, and an internal thread sleeve is installed at the thread position of one end of the surface of the external thread bolting head. A lower hexagonal head is fixed to the bottom end of the inner threaded sleeve, a plurality of arc-shaped supporting blocks at equal intervals are fixed to the bottom end of the upper metal blanking cap, and annular supporting edges are fixed to the outer walls of the arc-shaped supporting blocks. The automobile body is firmly clamped by the upper metal blanking cap and the lower protective sleeve, a hole is plugged, the automobile body can be firmly fixed to the automobile body through the structural design of the external thread fastening head and the internal thread sleeve, it is ensured that the metal blanking cap firmly abuts against the hole, and therefore the sealing performance of the sealing cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plugging covers, in particular to a thermally cured metal plugging cover. Background Art

[0002] The process holes on the car body are usually used to achieve some specific functions or meet the needs of the manufacturing process. These process holes may be used to install parts, reduce weight, enhance body rigidity, improve aerodynamic performance, and other purposes. The metal plug is used to plug the process holes on the car body. Its main function is to prevent noise from being transmitted into the car through the holes, thereby improving ride comfort and reducing noise levels. The metal plug is usually made of metal material and has a certain strength and durability. It can withstand the challenges of the external environment during the use of the car, such as temperature changes, humidity, etc.;

[0003] As disclosed in the authorization announcement number CN218703492U, a hot-melt outer panel plugging cover comprises a sealing plugging cover and a top cover outer panel, a through hole is opened on the top cover outer panel, and the sealing plugging cover is arranged on the top cover outer panel through the through hole, the sealing plugging cover comprises a plugging cover body and a plugging cover top, and the plugging cover top is arranged at the upper end of the plugging cover body, and the side wall of the plugging cover body is provided with a clamping angle, which is achieved by pasting hot melt adhesive in the gap between the arc structure and the clamping angle. This structure can provide sealing for the outer panel hole or the hole with high sealing requirements, prevent water and dust from entering, and isolate noise. However, this technical solution mainly uses the size of the clamping angle to adjust the overall insertion force and extraction force of the sealing plugging cover, and the sealing plugging cover is usually made of metal material, and there will be certain material deformation and dimensional deviation in the processing and manufacturing process of the metal material. If the clamping angle design is unreasonable, it will cause the sealing plugging cover to loosen or fall off during use, thereby reducing its sealing and sound insulation effects and affecting the ride comfort of the car. Utility Model Content

[0004] The purpose of the utility model is to provide a heat-cured metal plugging cover, with an external threaded bolting head integrally formed at the bottom end of the upper metal plugging cover. When the external threaded bolting head is inserted into the hole, the external threaded bolting head is pulled downward by the internal threaded sleeve, so that the upper metal plugging cover is firmly against the hole, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat-cured metal plugging cover, comprising an upper metal plugging cover and an externally threaded bolting head integrally formed at the center position of the bottom end of the upper metal plugging cover, an upper hexagonal head is installed at the top end of the upper metal plugging cover, an internally threaded sleeve is installed at the thread at one end of the surface of the externally threaded bolting head, and a lower hexagonal head is fixed to the bottom end of the internally threaded sleeve, a plurality of equally spaced arc-shaped support blocks are fixed to the bottom end of the upper metal plugging cover, and annular support edges are fixed on the outer walls of the plurality of arc-shaped support blocks, a glue storage ring is installed at the top end of the annular support edge, and an annular sinking groove for filling with hot melt glue is provided on the upper surface of the glue storage ring, and a lower protective sleeve is installed at one end of the surface of the internally threaded sleeve.

[0006] Preferably, two O-rings are embedded at the bottom end of the upper metal plugging cover.

[0007] Preferably, the upper hexagonal head and the lower hexagonal head have the same structure, and the upper hexagonal head includes a hexagonal protrusion fixed at the center position of the top end of the upper metal plugging cover, and a square recessed groove at the top end of the hexagonal protrusion.

[0008] Preferably, the lower protective sleeve includes a support plate fixed to the outer circumferential surface of the internal threaded sleeve, and an annular lip fixed at the top edge of the support plate.

[0009] Preferably, a plurality of equidistant reinforcing ribs are installed at the bottom end of the support plate, and one end of the reinforcing ribs is fixedly connected to the outer wall of the internal threaded sleeve.

[0010] Preferably, the inner diameter of the annular lip edge is equal to the outer diameter of the annular supporting edge.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the heat-cured metal plugging cover is provided with a structure that cooperates with each other, such as an internal threaded sleeve and an upper metal plugging cover. The internal threaded sleeve and the external threaded bolt head are threadedly matched, so that the lower sleeve continuously approaches the outer wall surface of the vehicle body and the upper metal plugging cover, so that the upper metal plugging cover and the lower sleeve are used to firmly clamp the vehicle body and seal the hole. The structural design of the external threaded bolt head and the internal threaded sleeve can be more firmly fixed on the vehicle body, ensuring that the metal plugging cover is firmly against the hole, thereby improving the sealing of the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0014] Figure 3 The three-dimensional cross-sectional structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 4 The three-dimensional cross-sectional structure of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 5 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0017] In the figure: 1. upper metal plug; 101. O-ring; 2. external thread bolting head; 3. upper hexagonal head; 301. hexagonal protrusion; 302. square groove; 4. internal thread sleeve; 5. lower hexagonal head; 6. arc-shaped support block; 7. annular support edge; 8. rubber storage ring; 801. annular sinking groove; 9. support plate; 901. reinforcement rib; 10. annular lip. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 The utility model provides an embodiment: a heat-cured metal plugging cover, comprising an upper metal plugging cover 1 and an externally threaded bolting head 2 integrally formed at the center position of the bottom end of the upper metal plugging cover 1, an upper hexagonal head 3 is installed on the top of the upper metal plugging cover 1, an internally threaded sleeve 4 is installed at the thread at one end of the surface of the externally threaded bolting head 2, and a lower hexagonal head 5 is fixed to the bottom end of the internally threaded sleeve 4, a plurality of equally spaced arc-shaped support blocks 6 are fixed to the bottom end of the upper metal plugging cover 1, and an annular support edge 7 is fixed on the outer wall of the plurality of arc-shaped support blocks 6, a rubber storage ring 8 is installed on the top end of the annular support edge 7, the arc-shaped support block 6 and the annular support edge 7 support the rubber storage ring 8, which helps to ensure that the rubber storage ring 8 will not be deformed or displaced during use, thereby maintaining its normal sealing;

[0020] The upper surface of the glue storage ring 8 is provided with an annular sinking groove 801 for hot melt glue to be filled, and a lower protective sleeve is installed on one end of the surface of the internal threaded sleeve 4. The annular sinking groove 801 filled with hot melt glue can form a uniform sealing layer after curing, thereby improving the sealing between the glue storage ring 8 and other components;

[0021] Two O-rings 101 are embedded at the bottom of the upper metal plugging cover 1. When the upper metal plugging cover 1 is buckled over the hole, two circles of O-rings 101 are arranged on the contact surface between the upper metal plugging cover 1 and the vehicle body. The O-rings 101 can fill the small gap between the metal plugging cover and the vehicle body to prevent air, water vapor or dust from penetrating from the gap, thereby improving the sealing performance and helping to prevent noise from entering the vehicle through the gap, thereby improving the sound insulation effect in the vehicle.

[0022] The upper hexagonal head 3 and the lower hexagonal head 5 have the same structure. The upper hexagonal head 3 includes a hexagonal protrusion 301 fixed at the center of the top of the upper metal plug 1, and a square recessed groove 302 at the top of the hexagonal protrusion 301. Since the upper hexagonal head 3 and the lower hexagonal head 5 have the same structure, the staff can operate the hexagonal protrusion 301 and the square recessed groove 302 by a ratchet wrench or an ordinary wrench to facilitate the user to position the upper metal plug 1 or screw the internal threaded sleeve 4.

[0023] The lower protective sleeve includes a support plate 9 fixed to the outer circumference of the internal thread sleeve 4, and an annular lip 10 fixed at the top edge of the support plate 9. A plurality of equidistant reinforcing ribs 901 are installed at the bottom end of the support plate 9. One end of the reinforcing rib 901 is fixedly connected to the outer wall of the internal thread sleeve 4. The reinforcing rib 901 is used to connect the support plate 9 and the internal thread sleeve 4. The reinforcing rib 901 can effectively increase the structural strength of the support plate 9 and the internal thread sleeve 4, so that the internal thread sleeve 4 can better withstand external loads and pressures.

[0024] The inner diameter of the annular lip 10 is equal to the outer diameter of the annular support edge 7. The close-fitting design can make the connection between the annular lip 7 and the annular support edge 10 more stable, reducing deformation and displacement under stress.

[0025] When the embodiment of the present application is in use, the staff first takes out the upper metal plugging cover 1 and the internal threaded sleeve 4 to be used, so that the external threaded bolting head 2 at the bottom end of the upper metal plugging cover 1 is inserted into the outside of the hole in the vehicle body until the end of the external threaded bolting head 2 passes through. At this time, the lower surface of the upper metal plugging cover 1 is in contact with the outer wall surface of the vehicle body. Then the staff limits the upper metal plugging cover 1 by the upper hexagonal head 3 and the wrench, and then screws the internal threaded sleeve 4 on the lower end of the external threaded bolting head 2 and continuously rotates the lower hexagonal head 5. At this time, the internal threaded sleeve 4 and the external threaded bolting head 2 are threadedly matched. Because the upper metal plugging cover 1 and the external threaded bolting head 2 are limited, the lower sleeve continuously moves toward the vehicle The outer wall surface of the vehicle body and the upper metal plugging cover 1 are close to each other, so that the upper metal plugging cover 1 and the lower sheath are used to firmly clamp the vehicle body and seal the hole. The staff puts hot melt adhesive in the annular sinking groove 801 of the glue storage ring 8 in advance. When the annular sinking groove 801 contacts the outer wall surface of the vehicle body, the plugging cover and the vehicle body are bonded again by hot melt adhesive. The structural design of the external threaded bolt head 2 and the internal threaded sleeve 4 in this structure can be more firmly fixed on the vehicle body, ensuring that the metal plugging cover is firmly against the hole, thereby improving the sealing of the cover. The design of the annular sinking groove 801 and the hot melt adhesive can make the metal plugging cover more stable after assembly and not easy to loosen or fall off.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A heat-cured metal plugging cover, characterized in that: It comprises an upper metal plugging cover (1) and an externally threaded bolting head (2) integrally formed at the center position of the bottom end of the upper metal plugging cover (1); an upper hexagonal head (3) is installed at the top end of the upper metal plugging cover (1); an internally threaded sleeve (4) is installed at the threaded portion of one end of the surface of the externally threaded bolting head (2); and a lower hexagonal head (5) is fixed to the bottom end of the internally threaded sleeve (4); a plurality of equally spaced arc-shaped support blocks (6) are fixed to the bottom end of the upper metal plugging cover (1); and an annular support edge (7) is fixed on the outer wall of the plurality of the arc-shaped support blocks (6); a glue storage ring (8) is installed at the top end of the annular support edge (7); and an annular sinking groove (801) for filling with hot melt glue is provided on the upper surface of the glue storage ring (8); and a lower protective sleeve is installed at one end of the surface of the internally threaded sleeve (4).

2. A heat-cured metal plugging cap according to claim 1, characterized in that: Two O-rings (101) are embedded at the bottom end of the upper metal plugging cover (1).

3. The heat-cured metal plugging cap according to claim 1, characterized in that: The upper hexagonal head (3) and the lower hexagonal head (5) have the same structure. The upper hexagonal head (3) comprises a hexagonal protrusion (301) fixed at the center of the top end of the upper metal plug (1), and a square recess (302) at the top end of the hexagonal protrusion (301).

4. The heat-cured metal plugging cap according to claim 1, characterized in that: The lower protective sleeve comprises a support plate (9) fixed on the outer peripheral surface of the internal thread sleeve (4), and an annular lip (10) fixed at the top edge of the support plate (9).

5. A heat-cured metal plugging cap according to claim 4, characterized in that: A plurality of equidistant reinforcing ribs (901) are installed at the bottom end of the support plate (9), and one end of the reinforcing rib (901) is fixedly connected to the outer wall of the internal threaded sleeve (4).

6. The heat-cured metal plugging cap according to claim 4, characterized in that: The inner diameter of the annular lip edge (10) is equal to the outer diameter of the annular supporting edge (7).

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