Vehicle body hole plugging plastic part

Abstract

The utility model provides a vehicle body hole plugging plastic part which solves the problem that an existing plugging part is inconvenient to use. The vehicle body hole plugging plastic part comprises a plastic cover, an annular clamping ring is vertically formed on the inner wall of the plastic cover, the lower end of the annular clamping ring extends out of the plastic cover, an annular buckling part is formed on the outer side wall of the lower end of the annular clamping ring, the top wall of the plastic cover extends downwards to form a positioning cylinder, the two ends of the positioning cylinder are open, and the positioning cylinder is located in the annular clamping ring; a section of conical surface I is formed on the inner side wall of the positioning cylinder, and the diameter of the conical surface I is gradually reduced from top to bottom; a sealing barrel is coaxially arranged in the positioning barrel, a second conical surface matched with the first conical surface is formed on the outer side wall of the sealing barrel, and the first conical surface is in close contact with the second conical surface; the bottom of the sealing barrel extends upwards to integrally form a holding rod, and the upper end of the holding rod extends out of the sealing barrel and is close to the upper end opening of the positioning barrel. The vehicle body hole plugging plastic part is convenient to use.

Description

Technical Field

[0001] The utility model relates to a plastic part, in particular to a plastic part for plugging holes in a vehicle body. Background Art

[0002] Body hole sealing seals are mainly used to seal necessary leakage holes, process holes, frame holes and through holes during vehicle manufacturing.

[0003] The above-mentioned sealing member is a sealing member for a hole on a car door disclosed in the Chinese Patent Library (Announcement No.: CN1107602C), in which the car door has an outer wall and an inner wall and a moisture interlayer arranged in the middle and functional components are arranged in the moisture interlayer. These functional components are preferably pre-assembled on a complete bracket and installed into the hole in the inner wall together with the complete bracket. The sealing member seals the hole on the complete bracket or the inner wall by having an annular member adapted to the edge of the hole and encircling the edge, and a sealing cover that basically fully covers the hole is detachably inserted into the annular member.

[0004] In the above-mentioned closing component, the sealing cover is completely in the annular component, and the side of the sealing cover facing the user is smooth, which makes it difficult for the user to grab the sealing cover and pull it out, affecting the insertion and removal of the sealing cover. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a car body hole plugging plastic part which is convenient for disassembly and assembly of a sealing barrel.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a plastic part for plugging a hole in a vehicle body, comprising a plastic cover, an annular snap ring is vertically formed on the inner wall of the plastic cover, the lower end of the annular snap ring extends out of the plastic cover, and an annular snap portion is formed on the outer side wall of the lower end of the annular snap ring, characterized in that the top wall of the plastic cover extends downward to form a positioning cylinder, the positioning cylinder and the plastic cover are coaxially arranged, both ends of the positioning cylinder are open, and the positioning cylinder is in the annular snap ring; a conical surface 1 is formed on the inner side wall of the positioning cylinder, and the diameter of the conical surface 1 gradually decreases from top to bottom; a sealing barrel is coaxially arranged in the positioning barrel, and a conical surface 2 matching the conical surface 1 is formed on the outer side wall of the sealing barrel, and the conical surface 1 and the conical surface 2 are in close contact; the sealing barrel is open at the top and closed at the bottom, and a holding rod is integrally formed on the bottom of the sealing barrel extending upward, and the upper end of the holding rod extends out of the sealing barrel and is arranged close to the upper end of the positioning barrel.

[0007] The sealing barrel is sealed and fixedly connected to the positioning barrel by using the cooperation of cone surface one and cone surface two, and a holding rod is vertically arranged in the sealing barrel, and the upper end of the holding rod is arranged close to the upper port of the positioning barrel to provide a holding position for the user to quickly insert and remove the sealing barrel, which has the advantages of convenient and easy disassembly and assembly of the sealing barrel.

[0008] In the above-mentioned plastic part for plugging holes in a vehicle body, a circumferential surface 1 is formed on the inner side wall of the above-mentioned positioning cylinder, the lower side of the conical surface 1 smoothly transitions with the circumferential surface 1, and the upper side of the conical surface 1 is transitionally connected with the top surface of the plastic cover by means of an arc surface; the outer side wall of the sealing barrel is composed of the above-mentioned conical surface 2 and a circumferential surface 2 matching the circumferential surface 1, and the circumferential surface 1 and the circumferential surface 2 are in close contact. The above-mentioned design can effectively increase the contact area between the positioning cylinder and the sealing barrel, while improving the connection stability and sealing performance of the two.

[0009] In the above-mentioned body hole sealing plastic part, the axial length of cone surface one is greater than the axial length of cone surface two, and the ratio of the axial length of cone surface two to the axial length of the sealing barrel is greater than 1 / 2, so that a more reliable seal is formed between the sealing barrel and the positioning tube.

[0010] In the above-mentioned body hole plugging plastic part, an annular groove coaxial with the sealing barrel is formed on the circumferential surface 2, an O-ring is arranged in the annular groove, and the outer circumferential surface of the O-ring is pressed on the circumferential surface 1. With the cooperation of the O-ring and the conical surface 1 and the conical surface 2, the sealing path formed between the sealing barrel and the positioning barrel is effectively extended, and the sealing performance between the sealing barrel and the positioning barrel is further enhanced.

[0011] In the above-mentioned body hole plugging plastic part, a threaded hole is axially opened at the upper end of the holding rod, so that in actual use, the holding rod can be connected to other rods through the threaded hole to extend it, making the disassembly and assembly of the sealing barrel easier and more convenient.

[0012] In the above-mentioned body hole plugging plastic part, a circle of ribs is formed on the inner side of the bottom wall of the sealing barrel, and the two ends of the ribs extend to the inner wall of the sealing barrel and the holding rod respectively. The ribs can strengthen the connection strength between the ribs and the sealing barrel, making the disassembly and assembly process of the sealing barrel smoother.

[0013] In the above-mentioned body hole plugging plastic part, an annular groove coaxial with the plastic cover is formed on the bottom wall of the plastic cover, and an annular rubber pad is arranged in the annular groove, the top surface of the rubber pad is pressed against the bottom wall of the annular groove, and the bottom surface of the rubber pad is outside the annular groove. When in use, after the plastic part is installed, the bottom surface of the rubber pad is pressed against the body sheet metal, which not only effectively strengthens the strength of the plastic part to seal the hole, but also compensates for the processing error of the plastic cover, so as to reduce the processing difficulty of the plastic cover.

[0014] In the above-mentioned body hole plugging plastic part, the plastic cover is an injection-molded integral part.

[0015] In the above-mentioned body hole plugging plastic part, a circle of notches is formed on the edge of the top wall of the plastic cover to reduce the weight of the plastic cover and reduce the material input.

[0016] Compared with the prior art, the above-mentioned body hole plugging plastic part has the following advantages:

[0017] 1. The sealing barrel is sealed and fixedly connected with the positioning barrel by using the cooperation of the first cone surface and the second cone surface, and a holding rod is vertically arranged in the sealing barrel, and the upper end of the holding rod is arranged close to the upper end of the positioning barrel to provide a holding position for the user to quickly insert and remove the sealing barrel, which has the advantages of convenient and easy disassembly of the sealing barrel.

[0018] 2. With the cooperation of the O-ring and the first and second cone surfaces, the sealing path formed between the sealing barrel and the positioning barrel is effectively extended, further enhancing the sealing performance between the sealing barrel and the positioning barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional schematic diagram of the plastic part for plugging the hole in the vehicle body.

[0020] Figure 2 It is a cross-sectional schematic diagram of a sealed barrel.

[0021] Figure 3 It is a three-dimensional schematic diagram of the sealing cover.

[0022] Figure 4 It is a three-dimensional schematic diagram of the sealing cover in another direction.

[0023] In the figure, 1, plastic cover; 1a, notch; 2, annular snap ring; 2a, buckle part; 2b, notch; 3, positioning cylinder; 3a, conical surface one; 3b, circumferential surface one; 4, sealing barrel; 4a, conical surface two; 4b, holding rod; 4c, circumferential surface two; 4d, threaded hole; 4e, rib; 5, O-ring; 6, rubber pad; 7, body sheet metal. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figure 1 As shown, the vehicle body hole plugging plastic part includes a plastic cover 1, and in an actual product, the plastic cover 1 is an injection-molded integral part.

[0026] Specifically,

[0027] like Figure 1 and Figure 4 As shown, an annular snap ring 2 is vertically formed on the inner wall of the plastic cover 1, and the annular snap ring 2 and the plastic cover 1 are coaxially arranged. The lower end of the annular snap ring 2 extends out of the plastic cover 1, and an annular snap portion 2a is formed on the outer side wall of the lower end of the annular snap ring 2. In the actual product, a circle of notches 2b are provided on the side wall of the lower end of the annular snap ring 2, and the notches 2b divide the snap portion 2a into a circle of arc segments, so that the snap portion 2a can deform more smoothly and pass through the hole.

[0028] like Figures 1 to 3As shown, the top wall of the plastic cover 1 extends downward to form a positioning cylinder 3, and the positioning cylinder 3 and the plastic cover 1 are coaxially arranged. Both ends of the positioning cylinder 3 are open, and the positioning cylinder 3 is in the annular retaining ring 2. A conical surface 1 3a is formed on the inner wall of the positioning cylinder 3, and the diameter of the conical surface 1 3a gradually decreases from top to bottom. A sealing barrel 4 is coaxially arranged in the positioning cylinder 3, and a conical surface 2 4a matching the conical surface 1 3a is formed on the outer wall of the sealing barrel 4, and the conical surface 1 3a and the conical surface 2 4a are in close contact. The sealing barrel 4 is open at the top and closed at the bottom. The bottom of the sealing barrel 4 extends upward to form a holding rod 4b integrally, and the upper end of the holding rod 4b extends out of the sealing barrel 4 and is arranged near the upper end of the positioning barrel 3. Preferably, the holding rod 4b is coaxially arranged with the sealing barrel 4.

[0029] The sealing barrel 4 is sealed and fixedly connected to the positioning barrel 3 by using the cooperation of the conical surface 1 3a and the conical surface 2 4a, and a holding rod 4b is vertically arranged in the sealing barrel 4, and the upper end of the holding rod 4b is arranged close to the upper end of the positioning barrel 3 to provide a holding position for the user to quickly insert and remove the sealing barrel 4, which has the advantages of convenient and easy disassembly and assembly of the sealing barrel 4.

[0030] Further explanation, a circumferential surface 1 3b is formed on the inner wall of the positioning cylinder 3, the lower side of the conical surface 1 3a smoothly transitions with the circumferential surface 1 3b, and the upper side of the conical surface 1 3a is transitionally connected with the top surface of the plastic cover 1 by means of an arc surface. The outer wall of the sealing barrel 4 is composed of a conical surface 2 4a and a circumferential surface 2 4c matching the circumferential surface 1 3b, and the circumferential surface 1 3b is in close contact with the circumferential surface 2 4c. The above design can effectively increase the contact area between the positioning cylinder 3 and the sealing barrel 4, while improving the connection stability and sealing performance of the two.

[0031] Among them, the axial length of the cone surface 1 3a is greater than the axial length of the cone surface 2 4a, and the ratio of the axial length of the cone surface 2 4a to the axial length of the sealing barrel 4 is greater than 1 / 2, so that a more reliable seal is formed between the sealing barrel 4 and the positioning cylinder 3.

[0032] In this embodiment,

[0033] like Figure 1 and Figure 2 As shown, an annular groove coaxial with the sealing barrel 4 is provided on the circumferential surface 2 4c, an o-ring 5 is provided in the annular groove, and the outer circumferential surface of the o-ring 5 is pressed on the circumferential surface 1 3b. With the cooperation of the o-ring 5, the conical surface 1 3a and the conical surface 2 4a, the sealing path formed between the sealing barrel 4 and the positioning barrel 3 is effectively extended, and the sealing performance between the sealing barrel 4 and the positioning barrel 3 is further enhanced.

[0034] A threaded hole 4d is axially provided at the upper end of the gripping rod 4b, so that in actual use, the gripping rod 4b can be connected to other rods by using the threaded hole 4d to lengthen, making the assembly and disassembly of the sealing barrel 4 easier and more convenient. Further explanation, a circle of ribs 4e is formed on the inner side of the bottom wall of the sealing barrel 4, and the two ends of the ribs 4e extend to the inner side wall of the sealing barrel 4 and the gripping rod 4b respectively. The provision of the ribs 4e can strengthen the connection strength between the ribs 4e and the sealing barrel 4, making the assembly and disassembly process of the sealing barrel 4 smoother.

[0035] like Figure 1 As shown, the bottom wall of the plastic cover 1 is provided with an annular groove coaxial with the plastic cover 1, and an annular rubber pad 6 is provided in the annular groove, the top surface of the rubber pad 6 is pressed against the bottom wall of the annular groove, and the bottom surface of the rubber pad 6 is outside the annular groove. When in use, after the plastic part is installed, the bottom surface of the rubber pad 6 is pressed against the body sheet metal 7, which not only effectively strengthens the strength of the plastic part to close the hole, but also compensates for the processing error of the plastic cover 1, so as to reduce the processing difficulty of the plastic cover 1.

[0036] In actual products, the sealing barrel 4 is an integrated structure; Figure 3 As shown, a circle of notches 1a is formed on the edge of the top wall of the plastic cover 1 to reduce the weight of the plastic cover 1 and the material input.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A plastic part for plugging a hole in a vehicle body, comprising a plastic cover (1), an annular snap ring (2) vertically formed on the inner wall of the plastic cover (1), the lower end of the annular snap ring (2) protruding out of the plastic cover (1), and an annular snap portion (2a) formed on the outer wall of the lower end of the annular snap ring (2), characterized in that: The top wall of the plastic cover (1) extends downward to form a positioning tube (3), the positioning tube (3) and the plastic cover (1) are coaxially arranged, both ends of the positioning tube (3) are open, and the positioning tube (3) is located inside the annular clamping ring (2); a conical surface (3a) is formed on the inner side wall of the positioning tube (3), and the diameter of the conical surface (3a) gradually decreases from top to bottom; a sealing barrel (4) is coaxially arranged inside the positioning tube (3), and a conical surface (4a) matching the conical surface (3a) is formed on the outer side wall of the sealing barrel (4), and the conical surface (3a) and the conical surface (4a) are in close contact; the sealing barrel (4) is open at the top and closed at the bottom, and a holding rod (4b) is integrally formed on the bottom of the sealing barrel (4) extending upward, and the upper end of the holding rod (4b) protrudes out of the sealing barrel (4) and is arranged close to the upper end of the positioning tube (3).

2. The vehicle body hole plugging plastic part according to claim 1, characterized in that: The inner wall of the positioning cylinder (3) is also formed with a circumferential surface one (3b), the lower side of the conical surface one (3a) smoothly transitions with the circumferential surface one (3b), and the upper side of the conical surface one (3a) is transitionally connected to the top surface of the plastic cover (1) by means of an arc surface; the outer wall of the sealing barrel (4) is composed of the conical surface two (4a) and a circumferential surface two (4c) matching the circumferential surface one (3b), and the circumferential surface one (3b) and the circumferential surface two (4c) are in close contact.

3. The vehicle body hole plugging plastic part according to claim 2, characterized in that: The axial length of the first conical surface (3a) is greater than the axial length of the second conical surface (4a), and the ratio of the axial length of the second conical surface (4a) to the axial length of the sealing barrel (4) is greater than 1 / 2.

4. The vehicle body hole plugging plastic part according to claim 2 or 3, characterized in that: An annular groove coaxial with the sealing barrel (4) is provided on the second circumferential surface (4c), an O-ring (5) is provided in the annular groove, and the outer circumferential surface of the O-ring (5) is pressed on the first circumferential surface (3b).

5. The vehicle body hole plugging plastic part according to claim 1, characterized in that: A threaded hole (4d) is axially formed at the upper end of the holding rod (4b).

6. The vehicle body hole plugging plastic part according to claim 1, characterized in that: A circle of ribs (4e) is formed on the inner side of the bottom wall of the sealing barrel (4), and two ends of the ribs (4e) extend to the inner side wall of the sealing barrel (4) and the holding rod (4b) respectively.

7. The vehicle body hole plugging plastic part according to claim 1, characterized in that: An annular groove coaxial with the plastic cover (1) is provided on the bottom wall of the plastic cover (1), and an annular rubber pad (6) is provided in the annular groove. The top surface of the rubber pad (6) is pressed against the bottom wall of the annular groove, and the bottom surface of the rubber pad (6) is outside the annular groove.

8. The vehicle body hole plugging plastic part according to claim 1, characterized in that: The plastic cover (1) is an injection-molded integral part.

9. The vehicle body hole plugging plastic part according to claim 1, characterized in that: A circle of notches (1a) is formed on the edge of the top wall of the plastic cover (1).

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