Bumper structure, bumper length adjustment control method and vehicle

Abstract

The invention provides a bumper structure, a bumper length adjusting control method and a vehicle, and belongs to the technical field of vehicles, the bumper structure comprises a bumper body and an end cover, the end cover is arranged at the end of the bumper body, the bumper body is provided with a sliding rail in the length direction, the end cover is provided with a sliding block matched with the sliding rail, and the bumper body is provided with a driving part; the driving piece is used for driving the sliding block to slide along the sliding rail. In the normal use state, the driving piece drives the sliding block to slide towards the outer side along the sliding rail, so that the end cover slides towards the outer side, the bumper is long at the moment, and a vehicle can be effectively protected. When the vehicle passes through complex working conditions such as mire or rainforest, the driving piece drives the sliding block to slide towards the inner side along the sliding rail and the end cover to slide towards the inner side, and at the moment, the bumper is short, so that the scratch probability of the bumper is reduced, the running resistance of the vehicle is reduced, and the performance of the vehicle is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicles, and more specifically, relates to a bumper structure, a control method for adjusting the length of the bumper, and a vehicle. Background Art

[0002] The bumper is a safety device that absorbs and mitigates external impact and protects the front and rear parts of the vehicle. It is the main protective component in the vehicle.

[0003] For off-road vehicles, the protection effect of the bumper is more important due to its complex operating conditions. Therefore, the bumper of off-road vehicles is usually designed to be longer to protect the vehicle more effectively. However, when the vehicle passes through complex conditions such as mud or rainforest, a longer bumper will cause more scratches, providing greater resistance to the vehicle's movement and limiting the vehicle's performance. Summary of the invention

[0004] The purpose of the present invention is to provide a bumper structure, aiming to solve the problem that when a vehicle passes through complex conditions such as mud or rainforest, a longer bumper will cause more scratches, provide greater resistance to the vehicle's movement, and limit the vehicle's performance.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a bumper structure, including a bumper body and an end cover, the end cover is arranged at the end of the bumper body, the bumper body is provided with a slide rail along the length direction, the end cover is provided with a slider adapted to the slide rail, the bumper body is provided with a driving member, and the driving member is used to drive the slider to slide along the slide rail.

[0006] In a possible implementation, the driving member includes a driving motor and a driving gear, the driving motor is arranged on the bumper body, the driving gear is connected to the driving end of the driving motor, the sliding block is provided with a tooth plate along the length direction of the bumper body, and the driving gear is meshed with the tooth plate.

[0007] In a possible implementation, stoppers are respectively provided at both ends of the tooth plate.

[0008] In a possible implementation, the two end covers are respectively mounted on the two ends of the bumper body, the slide rails are respectively arranged on both sides of the upper end surface and the lower end surface of the bumper body, the sliders are respectively arranged on the inner top surface and the inner bottom surface of the end covers, the driving member is installed at the lower part of the bumper body, and the slider located on the inner bottom surface of the end cover is installed with the tooth plate.

[0009] In a possible implementation, avoidance through holes are respectively opened along the length direction on both sides of the length direction of the lower portion of the bumper body, and the driving gear passes through the avoidance through holes and meshes with the corresponding gear plates.

[0010] In one possible implementation, the slide rail includes two first plates fixedly arranged on the upper end surface or the lower end surface of the bumper body, the two first plates are symmetrically arranged along the width direction of the upper end surface or the lower end surface of the bumper body, and a sliding gap extending along the length direction of the bumper body is formed between the two first plates, and the sliding block longitudinally penetrates the sliding gap and can slide along the length direction of the sliding gap.

[0011] In a possible implementation, a bent plate is provided on one side of the first plate body away from the sliding gap, the bent plate is fixed to the upper end surface or the lower end surface of the bumper body, a blocking plate is horizontally connected between the two bent plates, a sliding chamber is formed between the blocking plate and the sliding gap, and a sliding plate is provided at one end of the sliding block passing through the sliding gap, and the sliding plate is slidably arranged in the sliding chamber.

[0012] In a possible implementation, a transverse flange is provided at one end of the bending plate away from the first plate body, and the bending plate is fixed to the upper end surface or the lower end surface of the bumper body by means of the transverse flange. Both ends of the blocking plate are respectively provided with longitudinal flanges extending downward, and the blocking plate is fixed between the two bending plates by means of the two longitudinal flanges.

[0013] The beneficial effect of a bumper structure provided by the present invention is that: compared with the prior art, an end cover is provided at the end of the bumper body, a slider on the end cover is slidably matched with a slide rail on the bumper body, a driving member is respectively installed at the end of the bumper body, and the driving member drives the slider to slide along the slide rail, thereby realizing the sliding of the end cover relative to the length direction of the bumper body to achieve the extension or shortening of the bumper length. Under normal use, the driving member drives the slider to slide outward along the slide rail, thereby causing the end cover to slide outward. At this time, the length of the bumper is longer and can effectively protect the vehicle. When the vehicle passes through complex working conditions such as a mud pit or a rainforest, the driving member drives the slider to slide inward along the slide rail, and the end cover slides inward. At this time, the length of the bumper is shorter, which reduces the probability of the bumper being scratched, reduces the resistance of the vehicle's movement, and improves the performance of the vehicle.

[0014] The present invention also provides a control method for adjusting the length of a bumper, using the bumper structure, and specifically comprising the following steps:

[0015] S1: Setting the bumper length adjustment data, the host transmits the data signal to the motor controller of the drive motor through the body domain controller;

[0016] S2: If the data signal is a bumper retraction signal, the motor controller converts the bumper deployment signal into a motor forward travel signal, and controls the driving end of the drive motor to rotate forward by a corresponding angle; if the data signal is a bumper deployment signal, the motor controller converts the bumper retraction signal into a motor reverse travel signal, and controls the driving end of the drive motor to rotate reversely by a corresponding angle.

[0017] The beneficial effect of a control method for adjusting the length of a bumper provided by the present invention is that, compared with the prior art, based on the above-mentioned bumper structure, by setting the bumper length adjustment data, the host transmits the data signal to the motor controller of the drive motor through the body domain controller; the motor controller controls the driving end of the drive motor to rotate forward or reversely by a corresponding angle to achieve the purpose of adjusting the length of the bumper.

[0018] The present invention provides a vehicle using the above-mentioned bumper structure.

[0019] The beneficial effect of a vehicle provided by the present invention is that, compared with the prior art, since the above-mentioned bumper structure is used, the vehicle has the same beneficial effect as the bumper structure, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of a bumper structure provided by an embodiment of the present invention;

[0022] Figure 2 A rear view of a bumper structure provided by an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Sectional view along AA;

[0024] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0025] Figure 5 A schematic diagram of the structure of an end cover provided by an embodiment of the present invention;

[0026] Figure 6 A circuit diagram for controlling the forward or reverse rotation of a drive motor provided by the present invention.

[0027] Description of reference numerals:

[0028] 100, bumper body; 110, slide rail; 111, first plate; 112, bending plate; 113, blocking plate; 114, transverse flange; 115, longitudinal flange; 116, avoidance through hole; 117, avoidance long hole;

[0029] 200, end cover; 210, slider; 220, slide plate; 230, tooth plate; 240, stopper;

[0030] 300, driving member; 310, driving motor; 320, driving gear; 330, motor base. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] See also Figures 1 to 5 Now, a bumper structure provided by the present invention is described. A bumper structure includes a bumper body 100 and an end cover 200, wherein the end cover 200 is arranged at the end of the bumper body 100, the bumper body 100 is provided with a slide rail 110 along the length direction, the end cover 200 is provided with a slider 210 adapted to the slide rail 110, and the bumper body 100 is provided with a driving member 300, and the driving member 300 is used to drive the slider 210 to slide along the slide rail 110.

[0033] The bumper structure provided by the present invention has an end cover 200 at the end of the bumper body 100, and a slider 210 on the end cover 200 is slidably matched with a slide rail 110 on the bumper body 100. The driving member 300 drives the slider 210 to slide along the slide rail 110, thereby realizing that the end cover 200 slides relative to the length direction of the bumper body 100, so as to extend or shorten the length of the bumper. In normal use, the driving member 300 drives the slider 210 to slide outward along the slide rail 110, so that the end cover 200 slides outward. At this time, the length of the bumper is longer, which can effectively protect the vehicle. When the vehicle passes through complex working conditions such as mud or rain forest, the driving member 300 drives the slider 210 to slide inward along the slide rail 110, and the end cover 200 slides inward. At this time, the length of the bumper is shorter, which reduces the probability of the bumper being scratched, reduces the resistance of the vehicle's movement, and improves the performance of the vehicle.

[0034] The bumper body 100 includes a top plate, a bottom plate and a front side guard plate. The top plate is connected to the upper end of the front side guard plate and extends backwards. The bottom plate is connected to the lower end of the front side guard plate and extends backwards. The top plate, the bottom plate and the front side guard plate form a U-shaped frame structure with an opening facing backwards. The slide rails 110 are respectively arranged on both sides of the upper end surface of the top plate and on both sides of the lower end surface of the bottom plate. Support beams are symmetrically arranged on the left and right sides of the interior of the U-shaped frame structure. The bumper body 100 is installed at the front end of the vehicle body through the two support beams. The end cover 200 is also a frame structure with a U-shaped cross section. Its internal contour is larger than the external contour of the bumper body 100. The end cover 200 is sleeved on both ends of the bumper body 100 from front to back. The outer side of the end cover 200 is bent backwards, so as to form an arc end face on the outer side of the front end face of the end cover 200. In normal use, the effective width of the two end covers 200 and the bumper body 100 is greater than the width of the front end of the vehicle body, which can effectively protect the front end of the vehicle body. At the same time, the curved end surface of the end cover 200 can buffer the impact of the edge.

[0035] See also Figure 4 The driving member 300 includes a driving motor 310 and a driving gear 320. The driving motor 310 is arranged on the bumper body 100. The driving gear 320 is connected to the driving end of the driving motor 310. The slider 210 is provided with a tooth plate 230 along the length direction of the bumper body 100, and the driving gear 320 is meshed with the tooth plate 230.

[0036] Motor seats 330 are welded or bolted to both sides of the upper end surface of the bottom plate of the bumper body 100, and the drive motor 310 is mounted on the motor seat 330. The drive end of the drive motor 310 is mounted with a drive gear 320. A tooth plate 230 is mounted on the slider 210, and the length direction of the tooth plate 230 is the same as the length direction of the bumper body 100. The drive gear 320 and the tooth plate 230 are meshed with each other. The drive end of the drive motor 310 drives the drive gear 320 to rotate, and the drive gear 320 drives the slider 210 to slide along the slide rail 110 through the tooth plate 230 meshed with it, thereby realizing the adjustment of the end cover 200 along the length direction of the bumper body 100, so as to achieve the purpose of adjusting the overall length of the bumper.

[0037] Please refer to Figure 5 A stopper 240 is provided at both ends of the tooth plate 230 , and the stopper 240 can block the driving gear 320 to prevent the driving gear 320 from accidentally disengaging from the tooth plate 230 .

[0038] Specifically, the two end covers 200 are respectively mounted on the two ends of the bumper body 100, the slide rails 110 are respectively arranged on both sides of the upper end surface and the lower end surface of the bumper body 100, the sliders 210 are respectively arranged on the inner top surface and the inner bottom surface of the end covers 200, and the two driving members 300 are installed on both sides of the lower part of the bumper body 100, and the sliders 210 located on the inner bottom surface of the end covers 200 are installed with tooth plates 230. The two driving members 300 drive the two sliders 210 at the lower part to slide relative to or back to back through the meshing transmission mode of the driving gear 320 and the tooth plate 230, and the two sliders 210 at the upper part cooperate with the two sliders 210 at the lower part to slide in the corresponding slide rails 110, so as to realize the synchronous movement of the two end covers 200 relative to or back to back, so as to achieve the purpose of adjusting the length of the bumper.

[0039] Please refer to Figure 4 The drive motor 310 is installed on the upper end surface of the bottom plate of the bumper body 100 through the motor seat 330, that is, the drive motor 310 is located inside the bumper body 100, which can effectively hide the drive motor 310, and improve the aesthetics while protecting the corresponding structural parts. The avoidance holes 116 are respectively opened on both sides of the lower part of the bumper body 100 and are arranged along the length direction of the bumper body 100. The drive gear 320 on the same side passes through the corresponding avoidance holes 116 and meshes with the tooth plate 230.

[0040] Please refer to Figure 4 The slide rail 110 includes two first plates 111 fixedly arranged on the upper end surface or the lower end surface of the bumper body 100. The two first plates 111 are symmetrically arranged along the width direction of the upper end surface or the lower end surface of the bumper body 100. A sliding gap extending along the length direction of the bumper body 100 is formed between the two first plates 111. The slider 210 longitudinally penetrates the sliding gap and can slide along the length direction of the sliding gap. The width of the slider 210 is slightly smaller than the width of the sliding gap, ensuring that the slider 210 can slide along the length direction of the sliding gap, thereby driving the end cover 200 to move to the inside or outside of the bumper body 100, thereby adjusting the overall length of the bumper.

[0041] Furthermore, a bent plate 112 is provided on the side of the first plate body 111 away from the sliding gap, and the bent plate 112 extends downward and is fixed on the upper end surface or the lower end surface of the bumper body 100. A blocking plate 113 is horizontally connected between the two bent plates 112. The blocking plate 113 and the first plate body 111 are spaced apart to form a sliding chamber, and the cross-section of the sliding chamber is rectangular. A slide plate 220 is provided at one end of the slider 210 passing through the sliding gap. The cross-section of the slide plate 220 is also rectangular and fits with the sliding chamber. When the end cover 200 moves along the length direction of the bumper body 100, the slide plate 220 fits and slides with the sliding chamber, and there is no gap in the circumferential direction, which can ensure that the end cover 200 slides smoothly relative to the bumper body 100.

[0042] The blocking plate 113 of the slide rail 110 located at the lower end surface of the bumper body 100 is provided with an avoidance long hole 117, which is provided along the length direction of the bumper body 100 and corresponds to the position of the avoidance through hole 116. The tooth plate 230 is provided on the slide plate 220 on the inner bottom surface of the end cover 200, the tooth plate 230 is located on the side of the slide plate 220 facing the inside of the bumper body 100, and is integrally formed with the slide plate 220, and the driving gear 320 simultaneously penetrates the avoidance through hole 116 and the avoidance long hole 117 to mesh with the tooth plate 230.

[0043] The bending plate 112 is provided with a transverse flange 114 at one end away from the first plate body 111, and the bending plate 112 is fixed to the upper end face or the lower end face of the bumper body 100 by means of the transverse flange 114. The two ends of the blocking plate 113 are respectively provided with longitudinal flanges 115 extending downward, and the blocking plate 113 is fixed between the two bending plates 112 by means of the two longitudinal flanges 115. The two ends of the blocking plate 113 are respectively provided with longitudinal flanges 115 extending downward, and the blocking plate 113 is welded and fixed between the two bending plates 112 by means of the two longitudinal flanges 115. The longitudinal flanges 115 can provide a larger welding surface to ensure that the blocking plate 113 is stably installed between the two bending plates 112.

[0044] Preferably, the first plate body 111 , the bending plate 112 and the transverse flange 114 are integrally formed, and the blocking plate 113 and the longitudinal flange 115 are integrally formed.

[0045] The present invention also provides a control method for adjusting the length of a bumper, using the above-mentioned bumper structure, and specifically comprising the following steps:

[0046] S1: Setting bumper length adjustment data, the host transmits the data signal to the motor controller of the drive motor 310 through the body domain controller.

[0047] The bumper length adjustment data is input in digital form through the display screen of the car's intelligent cockpit. For example, when the length of the bumper needs to be shortened by 200mm, the bumper length adjustment data input section of the display screen is called up and "-200" is input; when the length of the bumper needs to be extended by 200mm, the bumper length adjustment data input section of the display screen is called up and "+200" is input.

[0048] The bumper length adjustment data input to the display screen is transmitted to the host after confirmation, and the host transmits the data signal to the motor controller through the CAN network.

[0049] S2: If the data signal is a bumper retraction signal, the motor controller converts the bumper deployment signal into a motor forward travel signal, and controls the driving end of the drive motor 310 to rotate forward by a preset angle; if the data signal is a bumper deployment signal, the motor controller converts the bumper retraction signal into a motor reverse travel signal, and controls the driving end of the drive motor 310 to rotate reversely by a preset angle.

[0050] The motor controller converts the bumper deployment signal into a motor forward travel signal, or converts the bumper retraction signal into a motor reverse travel signal through a built-in conversion algorithm.

[0051] The drive motor 310 is an actuator. According to the motor forward travel signal or the motor reverse travel signal transmitted by the motor controller, the driving end of the drive motor 310 rotates a corresponding angle in a specific rotation direction, thereby driving the gear plate 230 to move horizontally a corresponding distance through the drive gear 320 to achieve adjustment in the length direction of the bumper.

[0052] Please refer to Figure 6 , a circuit diagram for controlling the forward or reverse rotation of the driving motor 310. The driving motor 310 is connected in parallel with two relays, and is also equipped with two switches and corresponding batteries and insurance.

[0053] When the two switches are closed at the same time and the relay coil is energized, pins 3 and 4 of the first relay are connected, and pins 3 and 4 of the second relay are connected. The current flows in the direction of the reverse arrow, the drive motor 310 rotates counterclockwise, the drive gear 320 drives the gear plate 230 to move outward, and the end cover 200 moves outward, thereby extending the bumper.

[0054] When the first switch is closed and the second switch is opened, the 3rd and 5th pins of the first relay are connected, and the 3rd and 5th pins of the second relay are connected, and the current flows in the direction of the forward arrow, driving the motor 310 to rotate forward, and the movement state is opposite, ultimately achieving the shortening of the bumper.

[0055] When the first switch is turned on, no matter the second switch is in an open or closed state, the power supply is disconnected and the drive motor 310 does not work.

[0056] Based on the same inventive concept, the present invention further provides a vehicle using the above-mentioned bumper structure.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bumper structure, characterized in that: The invention comprises a bumper body (100) and an end cover (200), wherein the end cover (200) is arranged at the end of the bumper body (100), the bumper body (100) is provided with a slide rail (110) along the length direction, the end cover (200) is provided with a slider (210) adapted to the slide rail (110), and the bumper body (100) is provided with a driving member (300), and the driving member (300) is used to drive the slider (210) to slide along the slide rail (110).

2. A bumper structure according to claim 1, characterized in that: The driving member (300) comprises a driving motor (310) and a driving gear (320); the driving motor (310) is arranged on the bumper body (100); the driving gear (320) is connected to the driving end of the driving motor (310); the slider (210) is provided with a tooth plate (230) along the length direction of the bumper body (100); and the driving gear (320) is meshed with the tooth plate (230).

3. A bumper structure according to claim 2, characterized in that: Stoppers (240) are respectively provided at both ends of the tooth plate (230).

4. A bumper structure as claimed in claim 2, characterized in that: The two end covers (200) are respectively mounted on the two ends of the bumper body (100); the slide rails (110) are respectively arranged on both sides of the upper end surface and the lower end surface of the bumper body (100); the sliders (210) are respectively arranged on the inner top surface and the inner bottom surface of the end covers (200); the driving member (300) is installed at the lower part of the bumper body (100); and the slider (210) located on the inner bottom surface of the end cover (200) is installed with the tooth plate (230).

5. A bumper structure as claimed in claim 4, characterized in that: Avoidance through holes (116) are respectively provided on both sides of the length direction of the lower part of the bumper body (100), and the driving gear (320) passes through the avoidance through hole (116) and meshes with the corresponding gear plate (230).

6. A bumper structure according to claim 1, characterized in that: The slide rail (110) comprises two first plates (111) fixedly arranged on the upper end surface or the lower end surface of the bumper body (100); the two first plates (111) are symmetrically arranged along the width direction of the upper end surface or the lower end surface of the bumper body (100); a sliding gap extending along the length direction of the bumper body (100) is formed between the two first plates (111); the sliding block (210) longitudinally penetrates the sliding gap and can slide along the length direction of the sliding gap.

7. A bumper structure according to claim 6, characterized in that: A bending plate (112) is provided on the side of the first plate body (111) away from the sliding gap, and the bending plate (112) is fixed to the upper end surface or the lower end surface of the bumper body (100). A blocking plate (113) is horizontally connected between the two bending plates (112), and a sliding chamber is formed between the blocking plate (113) and the sliding gap. A sliding plate (220) is provided at one end of the slider (210) passing through the sliding gap, and the sliding plate (220) is slidably arranged in the sliding chamber.

8. A bumper structure according to claim 7, characterized in that: The bending plate (112) is provided with a transverse flange (114) at one end away from the first plate body (111), and the bending plate (112) is fixed to the upper end surface or the lower end surface of the bumper body (100) by means of the transverse flange (114). The two ends of the blocking plate (113) are respectively provided with longitudinal flanges (115) extending downward, and the blocking plate (113) is fixed between the two bending plates (112) by means of the two longitudinal flanges (115).

9. A control method for adjusting the length of a bumper, characterized in that: The bumper structure according to any one of claims 2 to 8 is used, specifically comprising the following steps: S1: Setting bumper length adjustment data, the host transmits the data signal to the motor controller of the drive motor (310) through the body domain controller; S2: If the data signal is a bumper retraction signal, the motor controller converts the bumper deployment signal into a motor forward travel signal, and controls the driving end of the drive motor (310) to rotate forward by a corresponding angle; if the data signal is a bumper deployment signal, the motor controller converts the bumper retraction signal into a motor reverse travel signal, and controls the driving end of the drive motor (310) to rotate backward by a corresponding angle.

10. A vehicle, characterized in that: The invention comprises a bumper structure as claimed in any one of claims 1 to 8.

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