Trailer backing-up auxiliary device

Abstract

The utility model relates to a trailer backing-up auxiliary device which comprises an unloading detection mechanism, a lateral detection mechanism and a platform front warning mechanism, and the unloading detection mechanism and the lateral detection mechanism can detect the nearest vertical distance between a platform position where the unloading detection mechanism and the lateral detection mechanism are located and a trailer and send out distance warning; the platform front warning mechanism is arranged on the front side of the platform, and the platform front warning mechanism can give out distance warning according to the distance, detected by the unloading detection mechanism and the lateral detection mechanism, between the trailer and the platform front warning mechanism. The device does not need to be equipped with a reversing command person, does not need to be equipped with auxiliary equipment such as a reversing radar and a reversing image, can intuitively inform a driver of the distance between the trailer and the platform so as to assist the driver in reversing, and can cope with the condition that transverse lateral reversing or 7-shaped reversing approaches the platform, so that the driving safety is improved. And the reversing efficiency of the truck in front of the platform can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing assistance, in particular to a trailer reversing assistance device. Background Art

[0002] When a semi-trailer truck needs to approach the cargo platform for loading and unloading, it usually needs to get very close to the adjustment plate on the cargo platform to facilitate the bridging work between the adjustment plate and the trailer. In the actual process of reversing the trailer to approach the adjustment plate, the driver often needs to judge whether the truck has reached the designated position based on his driving experience by observing through the rearview mirror or through auxiliary equipment such as reversing radar and reversing image, and a commander is usually equipped to assist in directing the reversing.

[0003] However, on the one hand, the blind spot of the semi-trailer truck is large during the reversing process, so it may collide with the command personnel and cause personal injury; on the other hand, some semi-trailer trucks are not equipped with auxiliary equipment such as reversing radar and reversing images; on the other hand, when long cargo needs to be loaded and unloaded, the trailer needs to approach the cargo platform laterally, and when it needs to reverse sideways or reverse in a "7" shape to approach the cargo platform, higher driving skills are placed on the driver. Utility Model Content

[0004] The purpose of the utility model is to provide a trailer reversing auxiliary device for solving the above-mentioned problems existing in the prior art.

[0005] In order to solve the above problems, the utility model provides a trailer reversing assist device, comprising:

[0006] Unloading detection mechanism, two unloading detection mechanisms are arranged on both sides of the adjustment plate on the cargo platform and close to the outer side of the cargo platform;

[0007] Side detection mechanisms, wherein two side detection mechanisms are arranged on both sides of the unloading detection mechanism on the cargo platform and close to the outer side of the cargo platform, and the distance between the side detection mechanisms is equal to the length of the trailer;

[0008] The unloading detection mechanism and the side detection mechanism can detect the shortest vertical distance between the cargo platform where they are located and the trailer and issue a distance warning;

[0009] A front-platform warning mechanism is provided at the front side of the cargo platform. The vertical distance between the front-platform warning mechanism and the cargo platform is greater than the width of the trailer. There is a distance between the front-platform warning mechanism and the trailer when the rear end of the trailer is flush with the outer side of the adjustment plate. The front-platform warning mechanism can issue the distance warning based on the distance between the platform and the trailer detected by the unloading detection mechanism and the side detection mechanism.

[0010] The trailer reversing assist device provided by the utility model also has the following technical features:

[0011] Furthermore, the spacing between the unloading detection mechanisms is greater than the width of the trailer.

[0012] Furthermore, collision blocks are provided on the front sides of the cargo platform, the unloading detection mechanism and the side detection mechanism.

[0013] Furthermore, the position of the unloading detection mechanism is adjustable, and the position of the side detection mechanism is adjustable.

[0014] Furthermore, the distance warning is a red, green and yellow light warning.

[0015] Furthermore, the distance warning includes three light warnings, namely red, green and yellow, and a sound warning, and the sound warning sounds when the light warning is displayed in red.

[0016] Furthermore, the light warning on the unloading detection mechanism and the side detection mechanism is a warning light provided on the unloading detection mechanism and the side detection mechanism, and the warning light is facing the upper side and the front side of the cargo platform; the light warning of the front platform warning mechanism is four light strips surrounding the front platform warning mechanism.

[0017] Furthermore, the warning light and the light strip display red, green and yellow lights in sequence from near to far according to the detected distance. The front warning mechanism is rectangular, and the light strip surrounds the side of the rectangle. Each light strip is provided with a directional arrow on the side of each rectangle, and the direction of the directional arrow is the specific location of the unloading detection mechanism or the side detection mechanism to which the light strip is connected.

[0018] Furthermore, the light warning starts to light up yellow when the trailer begins to approach the unloading detection mechanism or the side detection mechanism, turns green when the distance is appropriate and suitable for unloading, and turns red when the trailer collides with the collision block.

[0019] Furthermore, the front platform warning mechanism is located on the driver's side of the tractor when the rear end of the trailer is flush with the outer side of the cargo platform.

[0020] The utility model has the following beneficial effects: the device does not require a reversing commander, and does not require the semi-trailer truck to be equipped with auxiliary equipment such as reversing radar and reversing images. It can intuitively inform the driver of the distance between the trailer and the cargo platform to assist the driver in reversing, and can cope with the more difficult lateral side reversing or "7"-shaped reversing close to the cargo platform, which can significantly improve the reversing efficiency of the truck in front of the cargo platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the longitudinal reverse parking of a trailer of the present invention;

[0022] Figure 2 This is a schematic diagram of the trailer's transverse parking method according to the present invention;

[0023] Figure 3 This is a schematic diagram of the trailer of the present invention in the other direction of transverse parking;

[0024] Figure 4 This is a schematic diagram of the 7-shaped side parking of a trailer of the present invention;

[0025] Figure 5 This is a schematic diagram of a 7-shaped side parking of a trailer in the other direction of the present invention;

[0026] Figure 6 This is a schematic diagram of the overall adjustment structure of the present invention in a front view direction;

[0027] Figure 7 for Figure 6 A magnified diagram of the details at point A. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0029] like Figures 1 to 7 In the embodiment of the trailer reversing assist device of the present invention shown in the figure, the trailer reversing assist device includes an unloading detection mechanism 11, a side detection mechanism 12 and a front platform warning mechanism 13. The two unloading detection mechanisms 11 are arranged on both sides of the adjustment plate 21 on the cargo platform 20 and close to the outer side of the cargo platform 20; the adjustment plate 21 is used to adjust the height difference between the cargo platform 20 and the trailer 30, specifically to build a bridge between the trailer 30 and the cargo platform 20 to facilitate loading and unloading; the two side detection mechanisms 12 are arranged on both sides of the unloading detection mechanism 11 on the cargo platform 20 and close to the outer side of the cargo platform 20, and the distance between the side detection mechanisms 12 is 1 / 4 of the height difference between the cargo platform 20 and the trailer 30. The distance is equal to the length of the trailer 30; the unloading detection mechanism 11 and the side detection mechanism 12 can detect the shortest vertical distance between the position of the cargo platform 20 where they are located and the trailer 30 and issue a distance warning; the front platform warning mechanism 13 is arranged at the front side of the cargo platform 20, and the vertical distance between the front platform warning mechanism 13 and the cargo platform 20 is greater than the width of the trailer 30. There is a distance between the front platform warning mechanism 13 and the trailer 30 when the rear end of the trailer 30 is flush with the outer side of the adjustment plate 21; the front platform warning mechanism 13 can issue a distance warning based on the distance between the trailer 30 and the unloading detection mechanism 11 and the side detection mechanism 12.

[0030] Figures 1 to 5 The device assists the trailer 30 in reversing and approaching the cargo platform 20 for loading and unloading in five common situations. Figure 1 This is a schematic diagram of the longitudinal reversing of the trailer 30. Figure 2 、 Figure 3 This is a schematic diagram of the trailer 30 reversing horizontally. Figure 4 、 Figure 5 Schematic diagram of the trailer 30 performing a "7"-shaped side parking.

[0031] In one embodiment of the present application, preferably, the spacing between the unloading detection mechanisms 11 is greater than the width of the trailer 30 to facilitate Figure 1 The driver directly observes the distance warning on the unloading detection mechanism 11.

[0032] In one embodiment of the present application, preferably, the position of the unloading detection mechanism 11 is adjustable, and the position of the side detection mechanism 12 is adjustable to adapt to different width and length specifications of the trailer 30 .

[0033] In one embodiment of the present application, preferably, collision blocks are provided on the front sides of the cargo platform 20, the unloading detection mechanism 11 and the side detection mechanism 12, and the collision blocks can protect the above components when the trailer 30 collides with the above components.

[0034] In one embodiment of the present application, preferably, the front platform warning mechanism 13 is located on the driver's side of the tractor 31 when the rear end of the trailer 30 is flush with the outer side of the cargo platform 20, so that the driver can observe the front platform warning mechanism 13 through the car window or rearview mirror.

[0035] In one embodiment of the present application, preferably, Figure 6 、 Figure 7 As shown, the distance warning is a red, green, and yellow light warning, or a red, green, and yellow light warning and a sound warning are set at the same time, and the sound warning sounds when the light warning shows red; the light warning on the unloading detection mechanism 11 and the side detection mechanism 12 is a warning light provided on the unloading detection mechanism 11 and the side detection mechanism 12, and the warning light faces the upper side and the front side of the cargo platform 20; the light warning of the front warning mechanism 13 is four light strips 131 surrounding the front warning mechanism 13; the warning light and the light strip 131 are arranged from near to far according to the detected distance The three lights of red, green and yellow are displayed in sequence. The front warning mechanism 13 is rectangular, and the light strip 131 surrounds the side of the rectangle. Each light strip 131 is provided with a pointing arrow 132 on the side of each rectangle. The direction of the pointing arrow 132 is the specific position of the unloading detection mechanism 11 or the side detection mechanism 12 connected to the light strip 131; the light warning starts to light up yellow when the trailer 30 starts to approach the unloading detection mechanism 11 or the side detection mechanism 12, and turns green when the distance is right and suitable for unloading, and turns red when the trailer 30 collides with the collision block.

[0036] The specific working process of the device assisting the trailer 30 to reverse and approach the cargo platform 20 for loading and unloading is as follows:

[0037] like Figure 1 As shown, the trailer 20 is reversed longitudinally and approaches the adjustment plate 21 on the cargo platform 20. When the trailer 20 enters the range of the unloading detection mechanism 11, the unloading detection mechanism 11 and the front-platform warning mechanism 13 begin to light up yellow lights, and it is necessary to continue reversing and close the distance; when the trailer 20 reverses to the distance where the adjustment plate 21 is suitable for bridging the trailer 20, the unloading detection mechanism 11 and the front-platform warning mechanism 13 light up green lights, and the trailer 20 can stop to unload; when the trailer 20 collides with the collision block, the unloading detection mechanism 11 and the front-platform warning mechanism 13 light up red lights and issue a sound warning to remind the driver not to continue reversing. During this process, the driver can observe the light warning on the front warning mechanism 13 through the car window, or observe the light warning on the unloading detection mechanism 11 and the front warning mechanism 13 through the outside rearview mirror at the same time; since the scene observed by the outside rearview mirror is a mirror image, the direction of the pointing arrow 132 may be misleading, so observing the front warning mechanism 13 through the car window or directly observing the light of the unloading detection mechanism 11 through the outside rearview mirror can avoid this misleading.

[0038] like Figure 2 、 Figure 3 As shown, the trailer 30 is reversing sideways and approaching the adjustment plate 21 on the cargo platform 20. The process of lighting up the light warnings on the unloading detection mechanism 11, the side detection mechanism 12 and the front platform warning mechanism 13 is similar to the process of the trailer 20 reversing longitudinally and approaching the cargo platform 20, which will not be repeated here. In this process, the driver can observe the light warnings on the front platform warning mechanism 13 through the car window, or observe the light warnings on the unloading detection mechanism 11 and the front platform warning mechanism 13 through the exterior rearview mirror at the same time, which can also avoid misleading the mirror image of the exterior rearview mirror.

[0039] like Figure 4 、 Figure 5 As shown, the trailer 30 performs a "7"-shaped side parking close to the adjustment plate 21 on the cargo platform 20. During this process, the driver can intuitively know the reversing situation by observing the light warning on the warning mechanism 13 in front of the platform through the window.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A trailer reversing assist device, characterized in that: include: unloading detection mechanisms (11), wherein two unloading detection mechanisms (11) are arranged on both sides of an adjustment plate (21) on a cargo platform (20) and close to the outer side of the cargo platform (20); Side detection mechanisms (12), wherein two side detection mechanisms (12) are arranged on both sides of the unloading detection mechanism (11) on the cargo platform (20) and close to the outer side of the cargo platform (20), and the distance between the side detection mechanisms (12) is equal to the length of the trailer (30); The unloading detection mechanism (11) and the side detection mechanism (12) can detect the closest vertical distance between the cargo platform (20) where they are located and the trailer (30) and issue a distance warning; a front platform warning mechanism (13), the front platform warning mechanism (13) being arranged at the front side of the cargo platform (20), the vertical distance between the front platform warning mechanism (13) and the cargo platform (20) being greater than the width of the trailer (30), and a gap being present between the front platform warning mechanism (13) and the trailer (30) when the rear end of the trailer (30) is flush with the outer side of the adjustment plate (21); The front warning mechanism (13) can issue the distance warning based on the distance between the platform and the trailer (30) detected by the unloading detection mechanism (11) and the side detection mechanism (12).

2. The trailer reversing assist device according to claim 1, characterized in that: The spacing between the unloading detection mechanisms (11) is greater than the width of the trailer (30).

3. The trailer reversing assist device according to claim 2, characterized in that: Collision blocks are provided on the front sides of the cargo platform (20), the unloading detection mechanism (11) and the side detection mechanism (12).

4. The trailer reversing assist device according to claim 2, characterized in that: The position of the unloading detection mechanism (11) is adjustable, and the position of the side detection mechanism (12) is adjustable.

5. The trailer reversing assist device according to claim 3, characterized in that: The distance warning is a red, green and yellow light warning.

6. The trailer reversing assist device according to claim 3, characterized in that: The distance warning includes three light warnings of red, green and yellow and a sound warning, and the sound warning sounds when the light warning is displayed in red.

7. The trailer reversing assist device according to claim 5 or 6, characterized in that: The light warnings on the unloading detection mechanism (11) and the side detection mechanism (12) are warning lights provided on the unloading detection mechanism (11) and the side detection mechanism (12), and the warning lights face the upper side and the front side of the cargo platform (20); the light warnings on the front platform warning mechanism (13) are four light strips (131) surrounding the front platform warning mechanism (13).

8. The trailer reversing assist device according to claim 7, characterized in that: The warning light and the light strip (131) display red, green, and yellow lights in sequence from near to far according to the detected distance. The front warning mechanism (13) is rectangular, and the light strip (131) surrounds the side of the rectangle. Each light strip (131) is provided with a directional arrow (132) on the side of each rectangle. The direction of the directional arrow (132) is the specific position of the unloading detection mechanism (11) or the side detection mechanism (12) to which the light strip (131) is connected.

9. The trailer reversing assist device according to claim 8, characterized in that: The light warning starts to light up yellow when the trailer (30) begins to approach the unloading detection mechanism (11) or the side detection mechanism (12), turns green when the distance is appropriate and suitable for unloading, and turns red when the trailer (30) hits the collision block.

10. The trailer reversing assist device according to claim 9, characterized in that: The platform front warning mechanism (13) is located on the driver's side of the tractor (31) when the rear end of the trailer (30) is flush with the outer side of the cargo platform (20).

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