Automotive rear towing hitch cover plate opening force measurement adapter

Abstract

The utility model discloses automobile rear tow hook cover plate opening force measurement adapter whole is arc rigid structure, including, adapter body, hook, antiskid strip, draw plate, tension meter hole and angle adjusting mechanism, the adapter body is the plate -like rigid structure of cross section shape is arc, set up the draw plate that bends inward in the upper end of adapter body, is provided with tension meter hole in the upper middle portion of draw plate, is provided with angle adjusting mechanism in the lower middle portion of draw plate, angle adjusting mechanism includes, sets up a rectangular blind hole in the inboard of the lower middle portion of draw plate, the size shape of adjusting plate is same with rectangular blind hole, and installs in rectangular blind hole, adjusting bolt is two and respectively from draw plate outside screw -mounts in bolt hole, the utility model discloses beneficial technical effects are able to measure the opening force of tow hook cover plate under the condition of not damaging tow hook cover plate, and, can guarantee that the tension angle satisfies the design requirement, has improved the accuracy of opening force measurement.

Description

Technical Field

[0001] This utility model relates to the technology for measuring the opening force of a car rear tow hook cover, and in particular to an adapter for measuring the opening force of a car rear tow hook cover. Background Technology

[0002] To meet the emergency response needs of drivers, a tow hook is usually fixed to the rear of the vehicle frame. To avoid affecting the vehicle's appearance, a rectangular window is typically provided at the lower end of the rear bumper, and a tow hook cover is placed over this window to ensure the rear bumper remains intact. The tow hook cover is usually installed in the rectangular window of the rear bumper using an insert method; that is, several buckles are provided around the tow hook cover, and several matching eyelets are provided on the inside of the rear bumper window. When the tow hook cover is inserted into the rear bumper window, a secure locking structure is formed, thus ensuring that the tow hook cover will not fall off during bumpy driving (see appendix). Figure 1 In the diagram, A represents the rear bumper, and B represents the tow hook cover. Additionally, to facilitate removal of the tow hook cover from the rear bumper window, a handle (i.e., a rectangular recessed step in the lower center of the tow hook cover) is provided below the cover. To remove the tow hook cover, the operator can insert their fingers into the recessed step and pull upwards to remove it (see attached diagram). Figure 2 In the diagram, A is the rear bumper, B is the tow hook cover, and C is the handle. Clearly, the pulling force required to remove the tow hook cover (commonly referred to as the tow hook cover opening force) cannot be too great or too small. Excessive opening force requires considerable strength from the operator and may damage the rear bumper; insufficient opening force will cause it to detach during bumpy driving.

[0003] To ensure the tow hook cover opening force meets design requirements, it needs to be measured during vehicle production or before shipment. Since the tow hook cover is a single injection-molded unit, there's no fixed point for the dynamometer's tip during measurement; therefore, a destructive method must be used. This involves drilling a hole at the tow hook cover's handle, threading a rope through the hole and securing it, connecting the dynamometer's tip to the rope, and then pulling the dynamometer at a 70° angle to the horizontal until the tow hook cover is pulled out (according to ergonomic principles, most people's arm pull is at a 70° angle to the horizontal when bending over to pull the tow hook cover). The maximum force recorded by the dynamometer at this point is the tow hook cover opening force. Because the connection between the dynamometer and the tow hook cover handle is a rope, it's difficult to guarantee a 70° angle between the pulling force and the horizontal during actual pulling, leading to measurement errors.

[0004] Clearly, existing methods for measuring the opening force of a vehicle's rear towing hook cover have problems such as requiring damage to the towing hook cover and insufficient accuracy of the measurement results. Summary of the Invention

[0005] To address the problems of existing methods for measuring the opening force of a vehicle's rear towing hook cover, such as requiring damage to the cover and providing inaccurate measurement results, this invention proposes a vehicle rear towing hook cover opening force measuring adapter.

[0006] This utility model relates to an adapter for measuring the opening force of a car rear towing hook cover. The adapter has an overall arched rigid structure, including an adapter body, a hook, an anti-slip strip, a pull plate, a force gauge hole, and an angle adjustment mechanism. The adapter body is a plate-shaped rigid structure with an arched cross-section. A hook is provided at the lower end of the adapter body, and an anti-slip strip is provided on the inner surface of the hook. An inwardly bent pull plate is provided at the upper end of the adapter body, with a force gauge hole in the upper middle part of the pull plate and an angle adjustment mechanism in the lower middle part of the pull plate. The angle adjustment mechanism includes a rectangular blind hole on the inner side of the lower middle part of the pull plate, and two bolt holes at the bottom of the rectangular blind hole. Additionally, an adjustment plate and adjustment bolts are provided. The adjustment plate is the same size and shape as the rectangular blind hole and is installed inside the rectangular blind hole. Two adjustment bolts are screwed into the bolt holes from the outside of the pull plate, and the front end of each adjustment bolt is rotatably connected to the back side of the adjustment plate.

[0007] Preferably, the adapter body has a scratch-resistant flexible pad on its inner side.

[0008] Preferably, the surface of the adjustment plate is provided with a scratch-resistant flexible pad.

[0009] The beneficial technical effect of this utility model of automotive rear tow hook cover opening force measuring adapter is that it can measure the opening force of the tow hook cover without damaging it; and it can ensure that the pulling angle meets the design requirements, thus improving the accuracy of the opening force measurement. Attached Figure Description

[0010] Appendix Figure 1 A 3D schematic diagram of the rear bumper and tow hook cover of a car;

[0011] Appendix Figure 2 A three-dimensional schematic diagram of the rear bumper and tow hook cover of a car from another angle;

[0012] Appendix Figure 3 This is a three-dimensional schematic diagram of the automobile rear towing hook cover opening force measuring adapter of this utility model;

[0013] Appendix Figure 4 This is a three-dimensional schematic diagram of the automobile rear towing hook cover opening force measuring adapter from another angle.

[0014] Appendix Figure 5 This is a three-dimensional schematic diagram of the measurement process of this utility model.

[0015] In the diagram, 1 is the adapter body, 2 is the hook, 3 is the anti-slip strip, 4 is the pull plate, 5 is the tension gauge hole, 6 is the angle adjustment mechanism, 6-1 is the adjustment plate, and 6-2 is the adjustment bolt; A is the rear bumper, B is the tow hook cover plate, and C is the handle.

[0016] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates the present invention's automotive rear towing hook cover opening force measuring adapter. Detailed Implementation

[0017] See appendix Figures 3 to 5 This utility model relates to an adapter for measuring the opening force of a car rear towing hook cover. The adapter has an overall arched rigid structure, including an adapter body 1, a hook 2, an anti-slip strip 3, a pull plate 4, a force gauge hole 5, and an angle adjustment mechanism 6. The adapter body is a plate-shaped rigid structure with an arched cross-section. A hook is provided at the lower end of the adapter body, and an anti-slip strip is provided on the inner surface of the hook. An inwardly bent pull plate is provided at the upper end of the adapter body, with a force gauge hole in the upper middle part of the pull plate and an angle adjustment mechanism in the lower middle part of the pull plate. The angle adjustment mechanism includes a rectangular blind hole on the inner side of the lower middle part of the pull plate, and two bolt holes at the bottom of the rectangular blind hole. Additionally, an adjustment plate and adjustment bolts are provided. The size and shape of the adjustment plate are the same as the rectangular blind hole, and it is installed inside the rectangular blind hole. Two adjustment bolts are screwed into the bolt holes from the outside of the pull plate, and the front end of each adjustment bolt is rotatably connected to the back side of the adjustment plate. During the measurement, the hook of this invention is hung on the handle of the tow hook cover, ensuring that the inner side of the hook is in close contact with the concave side of the handle. The adapter body is placed along the surface of the tow hook cover, and the adjusting bolt is rotated so that the plane of the pull plate forms a 70° angle with the horizontal ground (only one adjustment is needed for each vehicle model). The front end of the tension gauge is connected to the pull plate through the tension gauge hole. The tow hook cover is pulled along the plane of the pull plate until it is pulled out. The maximum value recorded by the tension gauge at this time is the opening force of the tow hook cover. Because the tow hook cover is pulled by the hook of the adapter of this invention, there is no need to drill holes in the tow hook cover. Furthermore, because the tension angle is adjusted by the adapter, and the adapter is a rigid structure, it is ensured that the tension angle meets the design requirements during the measurement process, thereby ensuring the accuracy of the measurement.

[0018] As a preferred technical solution, the inner side of the adapter body is provided with a scratch-resistant flexible pad 7. This prevents the inner side of the adapter body from scratching the surface of the rear bumper during the pulling of the adapter.

[0019] As one of the preferred technical solutions, the surface of the adjustment plate is provided with a scratch-resistant flexible pad. Since the adjustment plate is in continuous contact with the surface of the rear bumper during the pulling process, the addition of the flexible pad can prevent the surface of the rear bumper from being scratched.

[0020] Obviously, the beneficial technical effect of this utility model of automobile rear tow hook cover opening force measuring adapter is that it can measure the opening force of the tow hook cover without damaging the tow hook cover; and it can ensure that the pulling angle meets the design requirements, thus improving the accuracy of the opening force measurement.

Claims

1. An adapter for measuring the opening force of a vehicle rear tow hook cover, characterized in that, The adapter has an overall arch-shaped rigid structure, including an adapter body, a hook, an anti-slip strip, a pull plate, a tension gauge hole, and an angle adjustment mechanism. The adapter body is a plate-shaped rigid structure with an arch-shaped cross-section. A hook is provided at the lower end of the adapter body, and an anti-slip strip is provided on the inner surface of the hook. An inwardly bent pull plate is provided at the upper end of the adapter body, with a tension gauge hole in the upper middle part of the pull plate and an angle adjustment mechanism in the lower middle part of the pull plate. The angle adjustment mechanism includes a rectangular blind hole on the inner side of the lower middle part of the pull plate, and two bolt holes at the bottom of the rectangular blind hole. In addition, an adjustment plate and adjustment bolts are provided. The size and shape of the adjustment plate are the same as those of the rectangular blind hole, and it is installed in the rectangular blind hole. There are two adjustment bolts, which are screwed into the bolt holes from the outside of the pull plate, and the front end of the adjustment bolt is rotatably connected to the back side of the adjustment plate.

2. The vehicle rear towing hook cover opening force measuring adapter according to claim 1, characterized in that, The adapter body has a scratch-resistant flexible pad on its inner side.

3. The automobile rear towing hook cover opening force measuring adapter according to claim 1 or 2, characterized in that, The surface of the adjustment plate is provided with a scratch-resistant flexible pad.

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