Trailer hitch cap and bumper

Abstract

The utility model discloses a trailer hook plug cover relates to the technical field of automobile accessories, and the two sides of the back opposite side of plug cover are respectively provided with check claw and bolt plate, and the included angle between the extension direction of check claw and bolt plate is acute angle, which has the characteristics of convenient dismounting and stable reliability, the utility model discloses a bumper further, and the bumper is provided with trailer mouth, and the inboard mouth along of trailer mouth has the support table that protrudes to the inboard of mouth area, and the two table surfaces of the opposite side of support table are respectively provided with check portion and plug -in portion, thereby ensuring that plug cover is installed in place, and the fixing of the trailer hook plug cover to be installed can be realized simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically a trailer hitch plug and bumper. Background Technology

[0002] A document entitled "A Front Bumper Tow Hook Cover Structure" (Document No. CN205890431U) discloses a detachable tow hook cover. The tow hook cover includes a hook, a buckle, and a reinforcing rib. The buckle has a right-angled trapezoidal cross-section, and two buckles are located on the two side edges of the tow hook cover, respectively, and are fixedly connected to the front bumper via the two buckles. Figure 1 As shown, the trailer hook cover structure in the above-mentioned literature has the following defects: First, after the right-angled trapezoidal buckle 5 is engaged with the trailer hook cover mounting hole 11 on the bumper 10, because one side 1a of the trailer hook cover 1 is completely fitted with the wall 11a of the trailer hook cover mounting hole, and the check surface 5a on the buckle 5 is completely fitted with the wall 11b of the trailer hook cover mounting hole, it is not easy to pull the trailer hook cover 1 out of the trailer hook cover mounting hole 11. Forcibly pulling it out can easily damage the buckle 5 structure. Second, the trailer hook cover 1 does not have a structure for the operator to pull it out, which is very inconvenient to operate. Third, there is no corresponding limiting structure on the inside of the trailer hook cover mounting hole 11. During the process of inserting the trailer hook cover 1 into the trailer hook cover mounting hole 11, the trailer hook cover 1 is prone to being inserted too deeply. Utility Model Content

[0003] The primary objective of this invention is to provide a trailer hook plug that is easy to assemble and disassemble, and is stable and reliable in installation.

[0004] A trailer hook plug has a check pawl and a pin plate on opposite sides of its back side, and the angle between the extending directions of the check pawl and the pin plate is an acute angle.

[0005] Another objective of this invention is to provide a bumper that is compatible with the aforementioned trailer hook cover.

[0006] A bumper has a trailer hitch, and a support platform protruding inward from the inner edge of the trailer hitch. A check valve and a connector are respectively provided on the two surfaces opposite to the support platform.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] This application uses a pin plate instead of a check claw on one side of the plug, which simplifies the structure of the plug and thus simplifies the corresponding mold structure. When disassembling the plug, by applying sufficient external force to the plug on the side with the check claw, the plug is detached from that position under the deformation of the check claw 11 itself, which reduces the difficulty of disassembling the plug in the prior art and ensures the reliability of the plug after installation.

[0009] By setting a support platform on the inner edge of the trailer hitch, the back of the plug is limited and blocked, ensuring that the outer surface of the plug is flush and smooth with the outer surface of the bumper after installation. At the same time, the support platform is equipped with a check valve and a plug-in part, which can also be used to fix the plug to be installed. During vehicle movement, the plug remains stably and reliably connected and sealed at the trailer hitch of the bumper. In addition, the bumper and the support platform are integrally molded by injection molding to form a complete and continuous whole, which helps to improve the structural strength of the bumper at the trailer hitch. Moreover, this structure does not increase the complexity of the mold and facilitates demolding. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the plug and bumper in the prior art;

[0011] Figure 2 , 3 This is a structural diagram of the bumper;

[0012] Figure 4 , 5 This is a schematic diagram of the plug structure;

[0013] Figure 6 , 7 Figure 8 shows a schematic diagram of the assembly structure of the cover and the bumper;

[0014] Figure 9 for Figure 8 Enlarged view of a portion of region C in the middle;

[0015] Figure 10 for Figure 8 Enlarged view of a portion of region B in the middle. Detailed Implementation

[0016] Example 1

[0017] Please see Figure 4-10As shown, a trailer hitch plug is provided with a check claw 11 and a pin plate 12 on opposite sides of the back of the plug 10. The angle between the extending directions of the check claw 11 and the pin plate 12 is an acute angle. The plug 10 in this application can be installed on the front bumper or rear bumper of a car. Compared with the solution of providing check claws 11 on both opposite sides of the back of the plug 10, this application uses a pin plate 12 instead of a check claw 11 on one side of the plug 10, which simplifies the structure of the plug 10 and thus simplifies the corresponding mold structure. By setting the angle between the extending directions of the check claw 11 and the pin plate 12 to an acute angle, when disassembling the plug 10, by applying sufficient external force to the plug 10 on the side with the check claw 11, the plug 10 will start to detach from that position under the action of the deformation of the check claw 11 itself. At this time, the pin plate 12 can also be smoothly detached from the edge of the trailer opening 21.

[0018] The check claw 11 is located at the lower edge of the back of the plug 10. The lower part of the suspended end of the check claw 11 is a slope 111. The cross-section of the suspended end of the check claw 11 in the plumb plane parallel to the extension direction of the check claw 11 is wedge-shaped. The part of the slope 111 near the end edge of the plug 10 has a check surface 112 facing the plug 10. When the plug 10 is installed, the entire check claw 11 is guided into the inside of the trailer opening 21 by the slope 111. When the check claw 11 is completely inside the trailer opening 21, the check surface 112 and the inner edge of the trailer opening 21 form a check fit, thereby preventing the plug 10 from detaching from the outside of the trailer opening 21.

[0019] There is a transition surface 113 between the check plate 112 and the inclined surface 111. The angle between the extension direction of the inclined surface 111 and the check claw 11, and the angle between the check plate 112 and the cover surface of the plug 10, are acute angles. The setting of the transition surface 113 increases the thickness between the inclined surface 111 and the check plate 112, and increases the structural strength of the suspended end of the check claw 11. The angle between the check plate 112 and the cover surface of the plug 10 is acute, so that when the plug 10 is removed, the check plate 112 can guide the check claw 11 out of the trailer opening 21. At the same time, in order to ensure the reliability of the plug 10 after installation, the angle between the check plate 112 and the cover surface of the plug 10 is preferably 15°.

[0020] The pin plate 12 is connected to the upper edge of the back of the plug 10. The angle between the front side 121 of the pin plate 12 and the cover surface of the plug 10 is an acute angle. The angle is preferably 20°. The setting of the tilt angle of the front side 121 of the pin plate 12 ensures the reliability of the plug 10 after installation, and also makes it easy to detach the plug 10 from the trailer opening 21.

[0021] A notch 13 is provided at the lower edge of the plug 10; when removing the plug 10, a pry bar is inserted into the notch 13, and the operator applies a downward force to the gripping end of the pry bar, which, together with the fulcrum of the trailer opening 21, causes the other end of the pry bar to detach the lower edge of the plug 10 outward.

[0022] The hook 14 has a barbed arrowhead-shaped head and the other end of the hook 14 is connected to the corner of the back of the cover 10. The hook 14 is fixedly connected to the inside of the bumper. When the cover 10 is removed from the trailer opening 21, the cover 10 remains on the bumper due to the constraint of the hook 14, thus avoiding the problem of the cover 10 being lost. At the same time, since the hook 14 is connected to the corner of the cover 10, the cover 10 can reduce the obstruction of the trailer opening 21 area due to its own weight.

[0023] Example 2

[0024] Please see Figure 2 , 3 As shown, a bumper 20 has a trailer hitch 21. A support platform 22 protrudes inward from the inner edge of the trailer hitch 21. A check valve 221 and a connector 222 are respectively provided on the two opposite sides of the support platform 22. An annular plate 23 is connected to the edge of the support platform 22 facing the trailer hitch 21. The surface of the annular plate 23 is perpendicular to both the plane of the trailer hitch 21 and the surface of the support platform 22. After protruding inward from the inner edge of the trailer hitch 21, the support platform 22 surrounds the inner edge of the trailer hitch 21, thereby blocking the trailer hook plug to be installed and preventing it from being installed. The trailer hook plug has a problem of improper installation. At the same time, the support platform 22 is provided with a check valve 221 and a plug-in part 222, which can also be used to fix the trailer hook plug to be installed. In addition, the bumper 20, the ring plate 23 and the support platform 22 are integrally formed by injection molding, so that the bumper 20, the ring plate 23 and the support platform 22 form a complete and continuous whole, which is equivalent to forming a reinforcing rib at the trailer opening 21. This helps to improve the structural strength of the bumper 20 at the trailer opening 21. Moreover, the hole-shaped or notch-shaped check valve 221 and plug-in part 222 do not increase the complexity of the mold and facilitate demolding.

[0025] The check valve 221 and the insertion valve 222 are respectively located on the support platform 22 at the upper and lower edges of the trailer opening 21; this arrangement makes operation more convenient and is in line with the operator's habits.

[0026] The check part 221 is in the shape of a hole or a notch, and the insertion part 222 is in the shape of a hole or a notch; the check part 221 and the insertion part 222 are designed with corresponding sizes and shapes according to the different structures of the trailer hook to be installed.

[0027] The support platform 22 is also provided with a through hole 223; the through hole 223 is used to thread the hanging rope or hook that connects to the trailer hook cover.

[0028] In this application, when the plug 10 in Embodiment 1 is installed into the trailer opening 21 in Embodiment 2, the specific installation and disassembly process is as follows: First, the pin plate 12 of the plug 10 is inserted into the insertion part 222 at the upper edge of the trailer opening 21. Then, the lower part of the plug 10 is pushed to make it swing in the direction of entering the trailer opening 21. Then, the inclined surface 111 slides along the outer edge of the trailer opening 21. Finally, the stop claw 11 completely enters the inner side of the trailer opening 21, so that the stop platform 112 and the inner edge of the trailer opening 21 form a stop fit, which restricts the plug 10 from detaching from the outside of the trailer opening 21. At the same time, the support platform 22 at the inner edge of the trailer opening 21 also restricts the plug 10 from continuing to enter the trailer opening 21. Moreover, when the back periphery of the plug 10 abuts against the support platform 22, the front of the plug 10 is aligned with the front of the bumper 20, ensuring the aesthetics of the front side of the bumper 20.

[0029] During disassembly, a pry bar is inserted into the notch 13. The operator applies downward force to the gripping end of the pry bar, which, together with the lower part of the trailer opening 21 acting as a fulcrum, pushes the plug 10 out of the trailer opening 21. The check surface 112, which is at an acute angle to the cover surface of the plug 10, can guide the check claw 11 to gradually exit the trailer opening 21. At the same time, the inclined pin plate 12 also facilitates the plug 10 to detach from the trailer opening 21 in a swinging manner.

Claims

1. A trailer hook plug, characterized in that: The back of the plug (10) is provided with a check claw (11) and a pin plate (12) on opposite sides. The angle between the extension directions of the check claw (11) and the pin plate (12) is an acute angle.

2. The trailer hook plug according to claim 1, characterized in that: The check claw (11) is located at the lower edge of the back of the plug (10). The lower part of the suspended end of the check claw (11) is a slope (111). The cross section of the suspended end of the check claw (11) in the plumb plane parallel to the extension direction of the check claw (11) is wedge-shaped. The end of the slope (111) near the plug (10) has a check platform (112) facing the plug (10).

3. The trailer hook plug according to claim 2, characterized in that: There is a transition surface (113) between the check surface (112) and the inclined surface (111). The angles between the extension directions of the inclined surface (111) and the check claw (11), and between the check surface (112) and the cover surface of the plug (10) are all acute angles.

4. The trailer hook plug according to claim 1, 2, or 3, characterized in that: The pin plate (12) is connected to the upper edge of the back of the plug (10), and the angle between the front (121) of the pin plate (12) and the cover surface of the plug (10) is an acute angle.

5. The trailer hook plug according to claim 3, characterized in that: A notch (13) is provided at the lower edge of the plug (10).

6. The trailer hook plug according to claim 1, characterized in that: The hook (14) has a barbed arrowhead at the head and the other end of the hook (14) is connected to the corner of the back of the plug (10).

7. A bumper adapted to the cover according to any one of claims 1-6, characterized in that: The bumper (20) is provided with a trailer opening (21). There is a support platform (22) protruding into the inner edge of the trailer opening (21). On the two surfaces opposite to the support platform (22), there are a check valve (221) and a plug-in part (222).

8. The bumper according to claim 7, characterized in that: The check valve (221) and the plug-in valve (222) are respectively located at the support platform (22) at the upper and lower edges of the trailer opening (21).

9. The bumper according to claim 7, characterized in that: The check part (221) is in the shape of a hole or a notch, and the insertion part (222) is in the shape of a hole or a notch.

10. The bumper according to claim 7, characterized in that: The support platform (22) is also provided with through holes (223).

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