Automobile tail door rubber buffer column

Abstract

The utility model discloses a rubber buffer column for an automobile tail door, which belongs to the field of rubber buffer columns for automobile tail doors and is characterized in that a rubber buffer column body is provided with a top head through a sealing piece, so that when the automobile tail door is closed, the top head is inserted into the rubber buffer column body; a contact concave hole which is reserved in the automobile tail door and corresponds to the rubber buffer column body can extrude the column head section of the ejector head inwards, and the hemispherical section is forced to extrude the expansion heads, so that the expansion heads can be ejected outwards to be tightly attached to the interior of the contact concave hole reserved in the automobile tail door; according to the automobile tail door rubber buffer column, annular supporting is achieved while axial supporting is achieved, the tightness degree of supporting contact is improved, and the noise generation probability is reduced.

Description

Technical Field

[0001] The utility model relates to the field of rubber buffer columns for automobile tailgates, and more specifically, to a rubber buffer column for an automobile tailgate. Background Art

[0002] A rubber buffer column is usually installed at the connection between the automobile tailgate and the tailgate frame. Besides reducing the impact force when closing the door, it can also lift the tailgate by a certain distance after the tailgate is closed, making the locking hook on the tailgate and the lock catch on the door frame more tightly connected, reducing the clearance, and reducing the noise generated during later vibrations.

[0003] Although the existing rubber columns for automobile tailgates have good buffering effects, they only have a support and shock absorption structure coaxial with the rubber column, lacking a support and shock absorption structure in the circumferential direction of the rubber column. Therefore, it is not conducive to the contact shock absorption of the rubber column over time, affecting the shock absorption effect. So, we propose a rubber buffer column for an automobile tailgate to solve the above problems. Summary of the Utility Model

[0004] 1. Technical Problem to be Solved

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a rubber buffer column for an automobile tailgate. By installing a top head on the rubber buffer column body through a sealing sheet, when the automobile tailgate is closed, the contact concave hole reserved on the automobile tailgate corresponding to the rubber buffer column body can squeeze the column head section of the top head inward, and force the hemispherical section to squeeze several expansion heads, so that several expansion heads can be pushed outwards and closely fit inside the contact concave hole reserved on the automobile tailgate, realizing circumferential support while achieving axial support of the rubber buffer column for the automobile tailgate, improving the tightness of the support contact, and reducing the probability of noise generation.

[0006] 2. Technical Solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A rubber buffer column for an automobile tailgate includes a rubber buffer column body, a sealing sheet, and a top head. The rubber buffer column body includes a plug head section and an extension section. A contact cavity is opened inside the plug head section. On the plug head section outside the contact cavity, there are no less than 4 expansion holes opened, and an expansion head is slidably connected inside the expansion hole. The bottom of the sealing sheet is fixedly bonded to the top of the plug head section, and a through hole is opened inside the sealing sheet. The top head includes a column head section and a hemispherical section. The column head section is slidably connected inside the through hole, and the outer edge of the hemispherical section is in contact with one end of the expansion head located inside the contact cavity.

[0009] Furthermore, the inner wall structure of the expansion hole is adapted to the outer shape structure of the expansion head, and the length of the expansion head is greater than the depth of the expansion hole. One end of the expansion head located inside the contact cavity is fixedly connected with an anti-detachment edge.

[0010] Furthermore, an internal threaded channel is provided inside the extension section. The top of the internal threaded channel is not connected to the inside of the contact cavity, and a plurality of shrinkage grooves are equidistantly provided on the outer wall of the extension section.

[0011] Furthermore, both the rubber buffer column body and the expansion head are polyhedron structures integrally injection-molded from rubber material, and the surfaces of the rubber buffer column body and the expansion head are smooth and free of burrs.

[0012] Furthermore, the top head is a polyhedron structure integrally injection-molded from plastic material, and the surface of the top head is smooth and free of burrs. The outer diameter of the top edge of the hemispherical section is equal to the inner diameter of the contact cavity wall.

[0013] 3. Beneficial Effects

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] In this solution, a top head is installed on the rubber buffer column body through a sealing piece. When the car tailgate is closed, the contact concave hole reserved on the car tailgate corresponding to the rubber buffer column body can squeeze the column head section of the top head inward, and force the hemispherical section to squeeze a plurality of expansion heads, so that the plurality of expansion heads can be pushed outwards and closely fit inside the contact concave hole reserved on the car tailgate, realizing the axial support of the rubber buffer column of the car tailgate and also realizing the circumferential support at the same time, improving the tightness of the support contact and reducing the generation probability of noise. Brief Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the disassembled structural schematic diagram of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the expansion head of the present utility model;

[0019] Figure 4 is the overall sectional structural schematic diagram of the present utility model.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Rubber buffer column body; 101. Plug head section; 102. Extension section; 103. Contact cavity; 104. Expansion hole; 105. Internal thread channel; 106. Shrinkage groove; 2. Sealing piece; 201. Through hole; 3. Thrust head; 301. Column head section; 302. Hemispherical section; 4. Expansion head; 401. Anti - detachment edge. Detailed implementation mode

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the attached drawings of the present invention; obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0023] Embodiment 1:

[0024] Please refer to Figures 1-4 , an automobile tail - gate rubber buffer column, comprising a rubber buffer column body 1, a sealing piece 2 and a thrust head 3. The rubber buffer column body 1 includes a plug head section 101 and an extension section 102. A contact cavity 103 is provided inside the plug head section 101. There are no less than 4 expansion holes 104 provided on the plug head section 101 outside the contact cavity 103, and an expansion head 4 is slidably connected inside the expansion hole 104. The bottom of the sealing piece 2 is fixedly bonded to the top of the plug head section 101, and a through hole 201 is provided inside the sealing piece 2. The thrust head 3 includes a column head section 301 and a hemispherical section 302. The column head section 301 is slidably connected inside the through hole 201, and the outer edge of the hemispherical section 302 is in contact with one end of the expansion head 4 located inside the contact cavity 103. An internal thread channel 105 is provided inside the extension section 102, and the top of the internal thread channel 105 is not connected to the inside of the contact cavity 103. A number of shrinkage grooves 106 are also equidistantly provided on the outer wall of the extension section 102.

[0025] The working principle of this kind of automobile tail - gate rubber buffer column is as follows:

[0026] First, install the rubber buffer column of the car tailgate on the corresponding screw on the car tailgate door frame through the internal thread channel 105 on the rubber buffer column body 1. At the same time, rotate the distance between the bottom of the rubber buffer column body 1 and the surface of the car tailgate door frame so that the length of the rubber buffer column body 1 extending out is sufficient to support the closed tailgate. Then, when the car tailgate is closed, the contact concave hole reserved on the car tailgate corresponding to the rubber buffer column body 1 can just cover the top of the rubber buffer column body 1 and squeeze the column head section 301 of the top head 3. At this time, while the rubber buffer column body 1 and the column head section 301 realize the axial support of the contact part between the car tailgate and the door frame, it can also cause the hemispherical section 302 of the top head 3 to squeeze several expansion heads 4, prompting the outer sides of the several expansion heads 4 to push outwards and firmly squeeze against the inner wall of the contact concave hole, realizing the circumferential contact support of the rubber buffer column of the car tailgate, thereby increasing the contact area and reducing the occurrence of vibration abnormal noise in the later stage.

[0027] Embodiment 2:

[0028] In view of the above Embodiment 1, a further description is made. Refer to Figure 4 , the inner wall structure of the expansion hole 104 is adapted to the outer shape structure of the expansion head 4, and the length of the expansion head 4 is greater than the depth of the expansion hole 104. One end of the expansion head 4 located inside the contact cavity 103 is fixedly connected with an anti - detachment edge 401. The rubber buffer column body 1 and the expansion head 4 are both polyhedron structures integrally injection - molded from rubber material, and the surfaces of the rubber buffer column body 1 and the expansion head 4 are smooth and free of burrs. The top head 3 is a polyhedron structure integrally injection - molded from plastic material, and the surface of the top head 3 is smooth and free of burrs. The outer edge diameter of the top of the hemispherical section 302 is equal to the inner wall diameter of the contact cavity 103.

[0029] The anti - detachment edge 401 provided can prevent the expansion head 4 from falling off when the expansion head 4 is pushed outwards, playing a limiting role. The rubber buffer column body 1, the expansion head 4, and the top head 3 are all integrally injection - molded structures, making the integrity stronger and facilitating production and assembly.

[0030] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. A rubber buffer column for a car tailgate, comprising a rubber buffer column body (1), a sealing sheet (2) and a top head (3), characterized in that: The rubber buffer column body (1) comprises a plug section (101) and an extension section (102); a contact cavity (103) is provided inside the plug section (101); no less than four expansion holes (104) are provided on the plug section (101) located outside the contact cavity (103); an expansion head (4) is slidably connected inside the expansion hole (104); the bottom of the sealing sheet (2) is fixedly bonded to the top of the plug section (101); a through hole (201) is provided inside the sealing sheet (2); the top head (3) comprises a column section (301) and a hemispherical section (302); the column section (301) is slidably connected inside the through hole (201); the outer edge of the hemispherical section (302) contacts one end of the expansion head (4) located inside the contact cavity (103).

2. The rubber buffer column for a car tailgate according to claim 1, characterized in that: The inner wall structure of the expansion hole (104) is compatible with the outer structure of the expansion head (4), and the length of the expansion head (4) is greater than the depth of the expansion hole (104). An anti-slip edge (401) is fixedly connected to one end of the expansion head (4) located inside the contact cavity (103).

3. The rubber buffer column for a car tailgate according to claim 1, characterized in that: An internal threaded channel (105) is provided inside the extension section (102), the top of the internal threaded channel (105) is not connected to the inside of the contact cavity (103), and a plurality of contraction grooves (106) are also provided at equal intervals on the outer wall of the extension section (102).

4. The rubber buffer column for a car tailgate according to claim 1, characterized in that: The rubber buffer column body (1) and the expansion head (4) are both polyhedral structures formed by integral injection molding of a rubber material, and the surfaces of the rubber buffer column body (1) and the expansion head (4) are smooth and free of burrs.

5. The rubber buffer column for a car tailgate according to claim 1, characterized in that: The plug (3) is a polyhedral structure integrally formed by injection molding of a plastic material, and the surface of the plug (3) is smooth and free of burrs. The diameter of the outer edge of the top of the hemispherical segment (302) is equal to the diameter of the inner wall of the contact cavity (103).

Images