Automobile bumper support with integrated crash cushion function

Abstract

The utility model relates to bumper bracket technical field, and disclose a kind of integrated crash cushion function's automobile bumper bracket, including bumper bracket body, the side wall of bumper bracket body is equipped with energy-absorbing box, the side of energy-absorbing box is equipped with the buffer mechanism for the bumper buffer, the side of buffer mechanism is equipped with the fixing mechanism for the bumper fixed;Buffer mechanism includes elastic steel sheet, movable plate, installation slot, buffer spring and movable rod.The utility model is extruded when being collided by energy-absorbing box, and controllable wrinkle deformation is generated, kinetic energy is converted into heat energy, absorbs certain collision force, movable plate pushes buffer spring compression, drives movable rod horizontal motion, makes piston at movable rod end slide inside installation pipe, pushes the hydraulic oil inside filling cavity to compress, and the hydraulic oil being compressed will pass through internal through-hole and enter compression cavity, so that the hydraulic oil is compressed and absorbs collision force, further buffering effect is realized.

Description

Technical Field

[0001] This utility model relates to the field of bumper bracket technology, specifically a car bumper bracket with integrated collision buffer function. Background Technology

[0002] Car bumper brackets are key structural connectors between the front and rear of a vehicle. Their core function is to securely attach the bumper to the vehicle's frame, while also providing support and positioning. They are an important component of the vehicle's exterior integrity and passive safety system. The bumper itself is a thin-walled outer covering made of plastic or metal with low rigidity, making it unable to directly withstand external forces. Bumper brackets use bolts, clips, and other methods to "lift" and fix the bumper to the main vehicle structure, ensuring that the bumper maintains its shape and position stability during daily driving and preventing it from loosening or falling off.

[0003] In existing technologies, such as the car bumper bracket disclosed in CN207106429U, a first bracket and a second bracket are included. The first bracket is located on one side of the second bracket, and a buffer member is provided between the first and second brackets. The two ends of the buffer member are respectively connected to the first bracket and the second bracket. The first bracket is connected to the car bumper, and the second bracket is connected to the car body. It uses a spring to buffer the force on the bumper when it is impacted, reducing injury to occupants and the vehicle body through the contraction of the first bracket. However, relying solely on the spring for buffering results in poor overall collision protection performance of the bumper bracket. Furthermore, the elasticity of the spring itself causes the bumper and bracket to wobble after assembly, affecting its usability. Utility Model Content

[0004] Given that the existing technology relies solely on springs as a buffer, resulting in poor overall collision protection of the bumper bracket, and that the elasticity of the springs causes the bumper and bracket to wobble after assembly, affecting its use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A car bumper bracket with integrated collision buffer function includes a bumper bracket body, an energy-absorbing box installed on the side wall of the bumper bracket body, a buffer mechanism for buffering the bumper on one side of the energy-absorbing box, and a fixing mechanism for fixing the bumper on one side of the buffer mechanism. The buffer mechanism includes an elastic steel plate, a movable plate, a mounting groove, a buffer spring, a movable rod, a mounting tube, a piston, a filling cavity, and a compression cavity. The elastic steel plate is placed on one side of the energy-absorbing box. Movable plates are fixed to both ends of the elastic steel plate. The movable plate is slidably connected to the mounting groove opened in the inner wall of the bumper bracket. The side wall of the movable plate abuts against the buffer spring. The buffer spring has a movable rod fixedly connected to the movable plate inside.

[0006] As a further improvement of this utility model: the end of the movable rod is telescopically connected to an installation tube, and the interior of the installation tube is provided with a filling cavity.

[0007] As a further embodiment of this utility model: a piston sleeved on the end of the movable rod is slidably connected to the inner surface of the filling cavity, and a compression cavity communicating with the filling cavity is opened on the inner wall of the mounting tube.

[0008] As a further embodiment of this utility model: the fixing mechanism includes a connector, an adjusting rod, a mounting plate, a mounting hole and a limiting bolt, and two connectors are provided, both of which are connected to one side of the elastic steel plate.

[0009] As a further improvement of this utility model: the ends of both connecting parts are telescopically connected with adjusting rods, and the ends of the adjusting rods are welded and fixed with mounting plates.

[0010] As a further improvement of this utility model: the mounting plate has four mounting holes inside, and the outer surface of the connector is fitted with a limiting bolt that abuts against the adjusting rod.

[0011] As a further improvement of this utility model: four fixing plates are equidistantly arranged on one side of the bumper bracket body, and the fixing plates are welded to the bumper bracket body.

[0012] As a further improvement of this utility model: the interior of each of the four sets of fixing plates is equipped with fixing bolts, and the interior of the compression chamber is filled with hydraulic oil.

[0013] The beneficial effects of this utility model are: 1. This utility model utilizes the controllable wrinkling deformation generated when the energy-absorbing box is subjected to compression and collision to convert kinetic energy into heat energy and absorb a certain amount of collision force. The movable plate pushes the buffer spring to compress, which drives the movable rod to move horizontally. This causes the piston at the end of the movable rod to slide inside the mounting tube, pushing the hydraulic oil inside the filling cavity to compress. The compressed hydraulic oil will enter the compression chamber through the internal through hole, so that the hydraulic oil is compressed to absorb the collision force and achieve a further buffering effect.

[0014] 2. By loosening the limiting bolts on the connecting parts, the fixing of the adjusting rod can be released. At this time, the mounting plate can be pulled horizontally to facilitate the adjustment of the horizontal position of the mounting plate and the fine adjustment of the position of the bumper. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a car bumper bracket with integrated collision buffer function; Figure 2 This is a side view of the bumper bracket in an automotive bumper bracket with integrated collision buffer function. Figure 3 A schematic cross-sectional view of the mounting tube in a car bumper bracket with integrated collision buffer function; Figure 4 A schematic cross-sectional view of a bumper bracket in an automotive bumper bracket with integrated collision buffer function. Figure 5 This is a three-dimensional structural diagram of a connector in a car bumper bracket that integrates collision buffering function.

[0016] In the diagram: 1. Bumper bracket; 2. Energy-absorbing box; 3. Elastic steel plate; 31. Movable plate; 32. Mounting groove; 33. Buffer spring; 34. Movable rod; 35. Mounting tube; 36. Piston; 37. Filling cavity; 38. Compression cavity; 4. Connector; 41. Adjusting rod; 42. Mounting plate; 43. Mounting hole; 44. Limit bolt; 5. Fixing plate; 6. Fixing bolt. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Example 1: Please refer to Figures 1-5 This is the first embodiment of the present utility model. This embodiment provides a car bumper bracket with integrated collision buffer function, including a bumper bracket body 1, an energy-absorbing box 2 installed on the side wall of the bumper bracket body 1, a buffer mechanism for buffering the bumper on one side of the energy-absorbing box 2, and a fixing mechanism for fixing the bumper on one side of the buffer mechanism. The buffer mechanism includes an elastic steel plate 3, a movable plate 31, a mounting groove 32, a buffer spring 33, a movable rod 34, a mounting tube 35, a piston 36, a filling cavity 37, and a compression cavity 38. The elastic steel plate 3 is placed on one side of the energy-absorbing box 2. Movable plates 31 are fixed at both ends of the elastic steel plate 3. The movable plate 31 is slidably connected to the outside of the mounting groove 32 opened in the inner wall of the bumper bracket body 1. The side wall of the movable plate 31 abuts against the buffer spring 33. The inside of the buffer spring 33 is provided with a movable rod 34 that is fixedly connected to the movable plate 31.

[0019] Specifically, the end of the movable rod 34 is telescopically connected to an installation tube 35, and the installation tube 35 has a filling cavity 37 inside.

[0020] Furthermore, when the bumper is impacted, the movement of the connecting piece 4 will push the elastic steel plate 3 to compress, and the energy-absorbing box 2 on the inner wall of the elastic steel plate 3 will be squeezed. The energy-absorbing box 2 adopts a thin-walled metal structure, such as aluminum alloy, and the cross-section is a honeycomb structure, so that the energy-absorbing box 2 will produce controllable wrinkling deformation when it is impacted, converting kinetic energy into heat energy, and thus absorbing a certain impact force.

[0021] Specifically, a piston 36 is slidably connected to the inner surface of the filling cavity 37 and sleeved on the end of the movable rod 34, and a compression cavity 38 is opened on the inner wall of the mounting tube 35 and communicates with the filling cavity 37.

[0022] Furthermore, the movable plate 31 pushes the buffer spring 33 to compress, and at the same time drives the movable rod 34 to move horizontally, so that the piston 36 at the end of the movable rod 34 slides inside the mounting tube 35, pushing the hydraulic oil inside the filling chamber 37 to compress. The compressed hydraulic oil will enter the compression chamber 38 through the internal through hole, so that the hydraulic oil is compressed to absorb the impact force and achieve a further buffering effect.

[0023] When the bumper is impacted, the connecting piece 4 moves, which in turn compresses the elastic steel plate 3. This compresses the energy-absorbing box 2 on the inner wall of the elastic steel plate 3. The energy-absorbing box 2, made of thin-walled metal such as aluminum alloy with a honeycomb cross-section, undergoes controllable wrinkling deformation upon impact, converting kinetic energy into heat energy and absorbing a certain amount of impact force. If the impact force is too great, the elastic steel plate 3 continues to be compressed, causing both ends of the arc-shaped elastic steel plate 3 to elongate. This causes the movable plate 31 to slide within the mounting groove 32. The movable plate 31 then compresses the buffer spring 33, simultaneously causing the movable rod 34 to move horizontally. This causes the piston 36 at the end of the movable rod 34 to slide inside the mounting tube 35, compressing the hydraulic oil inside the filling cavity 37. The compressed hydraulic oil then enters the compression cavity 38 through the internal through-hole, further absorbing the impact force and providing additional cushioning. During the extension and reset process of the buffer spring 33, the movable plate 31 is reset, ensuring proper cushioning for the next impact.

[0024] In summary, when this car bumper bracket with integrated collision buffer function is in use, the energy-absorbing box 2 undergoes controllable wrinkling deformation when subjected to compression and collision, converting kinetic energy into heat energy and absorbing a certain amount of collision force. The movable plate 31 pushes the buffer spring 33 to compress, causing the movable rod 34 to move horizontally, so that the piston 36 at the end of the movable rod 34 slides inside the mounting tube 35, pushing the hydraulic oil inside the filling chamber 37 to compress. The compressed hydraulic oil will enter the compression chamber 38 through the internal through hole, so that the hydraulic oil is compressed to absorb the collision force and achieve a further buffering effect.

[0025] Example 2: Please refer to Figures 1-5 This is the second embodiment of the present utility model.

[0026] Specifically, the fixing mechanism includes a connector 4, an adjusting rod 41, a mounting plate 42, a mounting hole 43, and a limiting bolt 44. There are two connectors 4, both of which are connected to one side of the elastic steel plate 3. The ends of both connectors 4 are telescopically connected to the adjusting rod 41, and the ends of the adjusting rod 41 are welded and fixed to the mounting plate 42.

[0027] Furthermore, screws are used to connect the bumper to the mounting holes 43 on the mounting plate 42, thereby completing the assembly of the bumper.

[0028] Specifically, the mounting plate 42 has four mounting holes 43 inside, and the outer surface of the connector 4 is fitted with a limiting bolt 44 that abuts against the adjusting rod 41.

[0029] Furthermore, by loosening the limiting bolt 44 on the connector 4, the fixing of the adjusting rod 41 can be released. At this time, the mounting plate 42 can be pulled horizontally to facilitate the adjustment of the horizontal position of the mounting plate 42 and to facilitate the fine adjustment of the position of the bumper.

[0030] Specifically, four sets of fixing plates 5 are equidistantly arranged on one side of the bumper bracket body 1. The fixing plates 5 are welded to the bumper bracket body 1. Fixing bolts 6 are installed inside the four sets of fixing plates 5. The compression chamber 38 is filled with hydraulic oil.

[0031] Furthermore, the bumper bracket 1 can be connected and fixed to the vehicle frame using the fixing plate 5 provided on the bumper bracket body 1 and the fixing bolts 6.

[0032] In use, place the bumper bracket 1 in a suitable position. Using the fixing plate 5 on the bumper bracket 1, the fixing bolts 6 can be used to connect and fix the bumper bracket 1 to the vehicle frame. Using the adjusting rod 41 on the connecting piece 4, the screws can be used to connect the bumper to the mounting hole 43 on the mounting plate 42, thereby completing the assembly of the bumper. Loosening the limiting bolt 44 on the connecting piece 4 can release the fixing of the adjusting rod 41. At this time, the mounting plate 42 can be pulled horizontally to adjust the horizontal position of the mounting plate 42, which facilitates the fine adjustment of the position of the bumper and facilitates the assembly operation of the bumper.

[0033] In summary, when this car bumper bracket with integrated collision buffer function is in use, the energy-absorbing box 2 undergoes controllable wrinkling deformation when subjected to compression and collision, converting kinetic energy into heat energy and absorbing a certain amount of collision force. The movable plate 31 pushes the buffer spring 33 to compress, causing the movable rod 34 to move horizontally, so that the piston 36 at the end of the movable rod 34 slides inside the mounting tube 35, pushing the hydraulic oil inside the filling chamber 37 to compress. The compressed hydraulic oil will enter the compression chamber 38 through the internal through hole, so that the hydraulic oil is compressed to absorb the collision force, achieving a further buffering effect. Furthermore, by loosening the limiting bolt 44 on the connecting piece 4, the fixing of the adjusting rod 41 can be released. At this time, the mounting plate 42 can be pulled horizontally to facilitate the adjustment of the horizontal position of the mounting plate 42 and the fine adjustment of the position of the bumper.

[0034] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A car bumper bracket with integrated collision buffer function, comprising a bumper bracket body (1), characterized in that: An energy-absorbing box (2) is installed on the side wall of the bumper bracket (1). A buffer mechanism for buffering the bumper is provided on one side of the energy-absorbing box (2), and a fixing mechanism for fixing the bumper is provided on one side of the buffer mechanism. The buffer mechanism includes an elastic steel plate (3), a movable plate (31), a mounting groove (32), a buffer spring (33), a movable rod (34), a mounting tube (35), a piston (36), a filling cavity (37), and a compression cavity (38). The elastic steel plate (3) is placed on one side of the energy-absorbing box (2). Movable plates (31) are fixed at both ends of the elastic steel plate (3). The movable plate (31) is slidably connected to the outside of the mounting groove (32) opened in the inner wall of the bumper bracket body (1). The side wall of the movable plate (31) abuts against the buffer spring (33). The inside of the buffer spring (33) is provided with a movable rod (34) fixedly connected to the movable plate (31).

2. The car bumper bracket according to claim 1, characterized in that: The end of the movable rod (34) is telescopically connected to an installation tube (35), and the interior of the installation tube (35) is provided with a filling cavity (37).

3. The car bumper bracket according to claim 2, characterized in that: The inner surface of the filling cavity (37) is slidably connected to a piston (36) sleeved on the end of the movable rod (34), and the inner wall of the mounting tube (35) is provided with a compression cavity (38) that communicates with the filling cavity (37).

4. The car bumper bracket according to claim 1, characterized in that: The fixing mechanism includes a connector (4), an adjusting rod (41), a mounting plate (42), a mounting hole (43), and a limiting bolt (44). There are two connectors (4), and both connectors (4) are connected to one side of the elastic steel plate (3).

5. The car bumper bracket according to claim 4, characterized in that: The ends of both connectors (4) are telescopically connected with adjusting rods (41), and the ends of the adjusting rods (41) are welded and fixed with mounting plates (42).

6. The car bumper bracket according to claim 5, characterized in that: The mounting plate (42) has four mounting holes (43) inside, and the outer surface of the connector (4) is fitted with a limiting bolt (44) that abuts against the adjusting rod (41).

7. The car bumper bracket according to claim 1, characterized in that: Four sets of fixing plates (5) are equidistantly arranged on one side of the bumper bracket body (1), and the fixing plates (5) are welded to the bumper bracket body (1).

8. The automobile bumper bracket according to claim 7, characterized in that: The four sets of fixing plates (5) are all equipped with fixing bolts (6), and the compression chamber (38) is filled with hydraulic oil.

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