A bumper for a bumper car

Abstract

The application relates to the technical field of new energy vehicle collision prevention, and discloses a collision prevention buffer of a collision prevention buffer vehicle, which comprises a first buffer mechanism; the first buffer mechanism comprises a shell, a connecting plate located in the shell and a first damper; one end of the first damper is hingedly arranged in the shell, and the other end is hingedly connected with the connecting plate; the second buffer mechanism comprises a first push plate, a plurality of second dampers and a second push plate; the first push plate is arranged at intervals from the second push plate, and each second damper is located between the first push plate and the second push plate; two ends of a blocking cable are fixedly connected with moving ends of two third dampers; a bottom plate is in abutment with the blocking cable; a battery assembly is arranged in a vehicle body, the battery assembly comprises a battery body and a shell body; the battery body is fixedly installed in the shell body, a safety airbag bag is fixedly arranged on the shell body; and the battery body is electrically connected with a third buffer mechanism. The battery protection of the new energy vehicle is improved, and the collision prevention buffer can be reused.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy vehicles, and relates to a collision buffer for a collision buffer vehicle. BACKGROUND

[0002] Many local policies clearly stipulate that a collision buffer vehicle or corresponding safety facilities with buffer effect and warning effect must be provided in road construction sections. With the continuous improvement of traffic safety regulations, the safety protection requirements in road construction and other scenarios are also increasing, which makes the importance of the collision buffer vehicle more prominent, further increasing the market demand therefor.

[0003] As a new category, new energy electric vehicles are increasingly driven by new energy. The collision buffer vehicle needs to be placed in the road construction section, and the traffic risk thereof is higher than that of a normal vehicle, and therefore higher protection requirements are proposed for the battery of the collision buffer vehicle.

[0004] The main function of the collision buffer is to absorb and disperse collision energy, protect construction personnel, equipment and personnel in the vehicle, and reduce the risk of accidents. Specifically, the collision buffer can absorb impact energy and reduce impact force through special structure and material design when a collision occurs, thereby reducing the damage degree of personnel and equipment.

[0005] The existing collision buffer is basically used once, and will deform after being impacted, and the deformation is basically plastic deformation and cannot be restored. The collision buffer needs to be replaced with a new one after use, and cannot be reused. SUMMARY

[0006] The present application provides a collision buffer for a collision buffer vehicle, which aims to solve the problem that the collision buffer of the prior art cannot be reused.

[0007] In one aspect, a collision buffer for a collision buffer vehicle is provided, comprising a vehicle body having a receiving cavity, and further comprising:

[0008] A first buffer mechanism, the first buffer mechanism comprising a shell, a connecting plate located in the shell, and a plurality of first dampers; one end of each of the plurality of first dampers is hingedly arranged in the shell, and the other end is hingedly connected to the connecting plate;

[0009] A second buffer mechanism, the second buffer mechanism comprising a first push plate, a plurality of second dampers, and a second push plate; the first push plate is fixedly connected to the shell; the first push plate and the second push plate are spaced apart, each of the second dampers is located between the first push plate and the second push plate, one end of each of the second dampers is fixedly connected to the first push plate, and the other end is fixedly connected to the second push plate;

[0010] The third buffering mechanism comprises a blocking rope, two third dampers, the third dampers have moving ends, the two ends of the blocking rope are fixedly connected with the moving ends of the two third dampers respectively, and the second push plate is fixedly connected with a bottom plate, and the bottom plate abuts against the blocking rope.

[0011] The battery assembly is arranged in the vehicle body, and comprises a battery body and an outer shell; the battery body is fixedly installed in the outer shell, a safety airbag bag is fixedly arranged on the outer shell, and the safety airbag bag is close to the storage cavity; the outer shell has an energy absorption structure; and the battery body is electrically connected with the third buffering mechanism.

[0012] Part of the first dampers are hinged with the first push plate, and the other part of the first dampers are hinged with the inner wall of the outer shell; the second dampers are uniformly and interval arranged on the second push plate. The first dampers are interval arranged around the connecting plate in the circumferential direction.

[0013] In one scheme, the second buffering mechanism further comprises a first baffle and a second baffle, the first baffle is fixedly connected with the first push plate, the first baffle is arranged around the edge of the first push plate, the second baffle is fixedly connected with the second push plate, the second baffle is arranged around the edge of the second push plate, the end of the second baffle away from the second push plate is located in the cavity surrounded by the first baffle, and the first baffle is movable relative to the second baffle.

[0014] Specifically, one end of the second baffle is fixedly connected with the second push plate, and the other end is located in the cavity surrounded by the first baffle.

[0015] In one scheme, the third buffering mechanism further comprises a plurality of first fixed pulleys, the first fixed pulleys are rotationally connected with the vehicle body, and the blocking rope abuts against the bottom plate after passing through the first fixed pulleys.

[0016] Specifically, the bottom plate is provided with a clamping groove or a pipe body, the blocking rope is clamped in the clamping groove or passes through the pipe body, and the blocking rope is relatively slidable with the clamping groove or the pipe body.

[0017] In one scheme, a plurality of rollers are arranged around the edge of the second push plate, and a sliding groove for the rollers to slide is arranged on the inner wall of the storage cavity.

[0018] Specifically, the rollers are interval arranged in the depth direction of the storage cavity.

[0019] In one scheme, a through hole for the blocking rope to slide is arranged on the inner wall of the storage cavity, the through hole is strip-shaped and extends in the depth direction of the storage cavity.

[0020] In one scheme, the shell is made of elastic material.

[0021] Specifically, the arc shape is convex.

[0022] In one scheme, the first damper, the second damper, and the third damper are all hydraulic dampers.

[0023] Specifically, the hydraulic damper comprises a hydraulic cylinder, a telescopic rod, and a piston; the piston divides the hydraulic cylinder into two chambers, and a through hole is arranged on the piston. The number of the blocking ropes is two, and the two blocking ropes are arranged at intervals on the bottom plate and are symmetrically arranged on both sides of the output end of the hydraulic cylinder. A third fixed pulley is further arranged on the hydraulic cylinder, and the blocking ropes pass through the third fixed pulley, the second fixed pulley, and the first fixed pulley in sequence and then enter the clamping groove or the pipe body. An electromagnetic valve is arranged on the through hole of the piston of the third damper, which can control the opening degree of the through hole; or the two chambers divided by the piston in the hydraulic cylinder of the third damper are both connected with an oil delivery pipe; a flow regulating valve is arranged on each oil delivery pipe; and an oil pump is connected with each oil delivery pipe, and the oil pump is located in an oil tank.

[0024] In one scheme, the first damper, the second damper, and the third damper are all hydraulic dampers.

[0025] Specifically, the reset spring arranged in the third damper cannot push the entire anti-collision buffer out of the storage cavity.

[0026] In one scheme, it further comprises a pushing mechanism for pushing the second push plate out of the storage cavity, a retracting rope, and a first driving motor; one end of the retracting rope is connected with the second push plate, and the other end is fixedly connected with the output end of the first driving motor.

[0027] In one scheme, the pushing mechanism comprises a driving chain, a push block, and a second driving motor; the second driving motor is in transmission connection with the driving chain; the push block is fixedly connected with the driving chain; and the push block can abut against the bottom plate.

[0028] The beneficial effects of the present application are as follows:

[0029] By arranging three buffer mechanisms, the impact force is collectively absorbed, when the impact force impacts the buffer mechanisms, the multiple first dampers, the multiple second dampers, and the multiple third dampers of the three buffer mechanisms collectively generate damping effect, the anti-collision buffer slowly deforms, and the deformation of the shell is elastic deformation, which can automatically restore to the original state after the impact force is removed. Under the joint action of the three dampers, the three buffer mechanisms only elastically deform, rather than plastically deform, and the three buffer mechanisms can restore to the original state after the impact is removed.

[0030] The first dampers are distributed around the connecting plate, which can ensure that the shell can still dampen the impact force when the shell is impacted by the impact force from different directions. The shear force acting on the second and third buffer mechanisms is reduced.

[0031] The second and third buffer mechanisms mainly alleviate the impact force in the depth direction of the storage device.

[0032] At the same time, the storage cavity can help store the anti-collision buffer, and the storage cavity provides a moving space for the anti-collision buffer when it is impacted by the impact force, so that the third buffer mechanism does not directly collide with the vehicle body.

[0033] When the anti-collision buffer is impacted by a strong impact, that is, when all three buffer mechanisms are damaged under the action of the impact force, and the impact force acts on the shell body, the safety airbag is triggered to pop out the safety airbag to offset the impact force on the shell body, reduce the deformation of the shell body, and ensure the safety of the battery body. At the same time, the energy-absorbing structure provided on the shell body can effectively absorb the impact force, that is, the outer part of the shell body deforms by absorbing energy under the action of the impact force, but the inner part of the shell body does not deform, ensuring the safety of the battery body. The protection level of the battery body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 is a structure diagram of the assembly of the anti-collision buffer and the vehicle body in an embodiment of the present application;

[0036] Figure 2 is a top view structure diagram of the anti-collision buffer in an embodiment of the present application;

[0037] Figure 3 is Figure 2 is a local enlarged diagram of A in

[0038] Figure 4 is a hydraulic cylinder structure diagram in an embodiment of the present application;

[0039] Figure 5 is another hydraulic cylinder structure diagram in an embodiment of the present application;

[0040] Figure 6 is a front view structure diagram of the third buffer mechanism in an embodiment of the present application;

[0041] Figure 7 is a schematic view of a side wall structure of a receiving cavity in an embodiment of the present application;

[0042] Figure 8 is a schematic view of a side view structure of a bottom plate in an embodiment of the present application;

[0043] Figure 9 is a schematic view of a top view structure of a battery assembly in an embodiment of the present application;

[0044] Figure 10 is a schematic view of a partial structure of a shell in an embodiment of the present application;

[0045] Reference signs in the drawings:

[0046] 1, vehicle body; 11, receiving cavity; 12, through opening; 2, first buffering mechanism; 21, shell; 22, connecting plate; 23, first damper; 3, second buffering mechanism; 31, first push plate; 32, second damper; 33, second push plate; 34, first baffle; 35, second baffle; 4, third buffering mechanism; 41, blocking cable; 42, third damper; 43, bottom plate; 44, first fixed pulley; 45, second fixed pulley; 46, third fixed pulley; 47, rolling wheel; 48, sliding groove; 5, hydraulic damper; 51, hydraulic cylinder; 52, telescopic rod; 53, piston; 54, through hole; 55, oil delivery pipe; 56, flow regulating valve; 57, oil tank; 58, oil pump; 59, return spring; 6, pushing-out mechanism; 61, driving chain; 62, push block; 63, second driving motor; 7, retracting rope; 8, first driving motor; 9, battery assembly; 91, battery body; 92, shell body; 93, airbag package; 94, reinforcing beam; 95, plate body; 96, energy-absorbing material; 97, reinforcing plate. DETAILED DESCRIPTION

[0047] The specific embodiments of the present application are described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not used to limit the scope of the present application. Similarly, the following examples are only part of the embodiments of the present application but not all the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0048] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated thereby. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0050] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0052] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. Exemplary representations of the above terms in this specification are not necessarily directed to the same embodiment or example. Moreover, the described particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. In addition, different embodiments or examples described in this specification and features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0053] The present application makes improvements and innovations, and proposes the following embodiments.

[0054] In some embodiments, referring to Figures 1 to 10 , a collision buffer of a collision buffer vehicle is provided, comprising a vehicle body 1 with a receiving cavity 11, further comprising:

[0055] A first buffer mechanism 2, the first buffer mechanism 2 comprises a shell 21, a connecting plate 22 located in the shell 21, and a plurality of first dampers 23; one end of each of the plurality of first dampers 23 is hingedly arranged in the shell 21, and the other end is hingedly connected with the connecting plate 22;

[0056] A second buffer mechanism 3, the second buffer mechanism 3 comprises a first push plate 31, a plurality of second dampers 32, and a second push plate 33; the first push plate 31 is fixedly connected with the shell 21; the first push plate 31 and the second push plate 33 are spaced apart, each second damper 32 is located between the first push plate 31 and the second push plate 33, one end of the second damper 32 is fixedly connected with the first push plate 31, and the other end is fixedly connected with the second push plate 33;

[0057] A third buffer mechanism 4; the third buffer mechanism 4 comprises a blocking cable 41 and two third dampers 42; the third damper 42 has a moving end; the two ends of the blocking cable 41 are fixedly connected with the moving ends of the two third dampers 42; the second push plate 33 is fixedly connected with a bottom plate 43, and the bottom plate 43 abuts against the blocking cable 41;

[0058] A battery assembly 9, the battery assembly 9 is arranged in the vehicle body 1, the battery assembly 9 comprises a battery body 91 and an outer shell 92; the battery body 91 is fixedly installed in the outer shell 92, a safety airbag bag 93 is fixedly arranged on the outer shell 92, and the safety airbag bag 93 is close to the receiving cavity 11; the outer shell 92 has an energy absorption structure; the battery body 91 is electrically connected with the third buffer mechanism 4.

[0059] Part of the first damper 23 is hinged with the first push plate 31, and the other part of the first damper 23 is hinged with the inner wall of the shell 21; each second damper 32 is uniformly spaced on the second push plate 33. The plurality of first dampers 23 are circumferentially spaced around the connecting plate 22.

[0060] The first buffer structure 2 first absorbs the impact force when the impact occurs, and then the impact force is transmitted to the second buffer mechanism 3 and the third buffer mechanism 4, and the damping capacity of the first damper 23, the second damper 32 and the third damper 42 increases in turn. This setting can effectively protect the service life of the second damper 32 and the third damper 42. The first damper 23 contacts the largest impact force and is most likely to be damaged. However, the first damper 23 is arranged at the front end, so that it is convenient to replace and maintain. By absorbing the impact force with the first damper 23, the effect of the impact force on the second damper 32 and the third damper 42 is reduced. The service life of the second damper 32 and the third damper 42 is improved.

[0061] The plurality of first dampers 23 can not only be circumferentially distributed in the horizontal plane, but also be circumferentially distributed in the vertical plane; or be circumferentially distributed in any plane. This setting can effectively absorb the impact force from all directions and improve the adaptability of the anti-collision buffer.

[0062] Specifically, the first dampers 23 are arranged in the horizontal direction, that is, the plurality of first dampers 23 arranged in multiple layers can improve the damping effect of the impact force. The service life of a single damper is guaranteed.

[0063] By arranging three buffer mechanisms to jointly absorb the impact force, when the impact force impacts the buffer mechanism, the plurality of first dampers 23, the plurality of second dampers 32 and the plurality of third dampers 42 of the three buffer mechanisms jointly dampen, the anti-collision buffer slowly deforms, and the deformation of the shell 21 is elastic deformation. After the impact force is removed, it can automatically recover to the original state. Under the joint action of the three dampers, the three buffer mechanisms only elastically deform, rather than plastically deform, and the three buffer mechanisms can recover to the original state after the impact is removed.

[0064] The plurality of first dampers 23 are circumferentially distributed on the connecting plate 22, which can ensure that the shell 21 can still dampen the impact force when it receives impact force from different directions. The shear force acting on the second buffer mechanism 3 and the third buffer mechanism 4 is reduced.

[0065] The second buffer mechanism 3 and the third buffer mechanism 4 mainly alleviate the impact force in the depth direction of the receiver.

[0066] Meanwhile, the accommodation cavity 11 can help accommodate the anti-collision buffer, and the accommodation cavity 11 provides a moving space for the anti-collision buffer when the anti-collision buffer is impacted by the impact force, so that the third buffer mechanism 4 is not directly impacted on the vehicle body 1.

[0067] By arranging the airbag bag 93 on the outer shell 92, when the anti-collision buffer vehicle is subjected to a violent impact, that is, when all the three buffer mechanisms are damaged under the action of the impact force, and the impact force is also acting on the outer shell 92, the airbag bag 93 triggers the airbag to pop out to offset the impact of the impact force on the outer shell 92, reduce the deformation of the outer shell 92, and ensure the safe use of the battery body 91. At the same time, the energy-absorbing structure arranged on the outer shell 92 can effectively absorb the impact of the impact force, that is, the outer shell 92 deforms by absorbing energy under the action of the impact force, but the inner part of the outer shell does not deform, ensuring the safe use of the battery body 91. The protection level of the battery body 91 is improved.

[0068] Specifically, the airbag bag 93 is an airbag for a vehicle, and the energy-absorbing structure is an energy-absorbing material 96 filled in the outer shell 92, that is, the outer shell 92 has a double-layer structure, which is two mutually spaced plates 95. The plate 95 located on the outer layer serves as the outer part of the outer shell, and the thickness of the plate 95 located on the outer layer is less than that of the other plate 95. The energy-absorbing material 96 is filled between the two plates 95.

[0069] The energy-absorbing material 96 is a negative Poisson's ratio structure. The energy-absorbing filler of the negative Poisson's ratio structure has good energy-absorbing effect.

[0070] The inner part of the outer shell 92 is also provided with a reinforcing beam 94, and the two ends of the reinforcing beam 94 are fixedly provided with reinforcing plates 97, and the reinforcing plates 97 are fixedly connected with the inner wall of the outer shell 92. The extension direction of the reinforcing beam 94 is the depth direction of the accommodation cavity 11. The cooperation of the reinforcing beam 94 and the reinforcing plate 97 can fully reduce the influence of small impact on the deformation of the inner part of the outer shell 92. The safe use of the battery body 91 is ensured.

[0071] In one embodiment, the second buffer mechanism 3 further comprises a first baffle 34 and a second baffle 35, the first baffle 34 is fixedly connected with the first push plate 31, and the first baffle 34 is arranged along the edge of the first push plate 31; the second baffle 35 is fixedly connected with the second push plate 33, and the second baffle 35 is arranged along the edge of the second push plate 33; the end of the second baffle 35 away from the second push plate 33 is located in the cavity surrounded by the first baffle 34, and the first baffle 34 can move relative to the second baffle 35. The first baffle 34 and the second baffle 35 are arranged to enclose the second damper 32, so as to reduce the impurities entering the vicinity of the second damper 32 and affect the normal use of the damper.

[0072] Specifically, one end of the second baffle 35 is fixedly connected with the second push plate 33, and the other end is located in the cavity surrounded by the first baffle 34. When the second damper 32 is stretched to the longest state, a part of the second baffle 35 is still in the cavity surrounded by the first baffle 34, which can reduce the dust or large particles from entering the cavity and affecting the normal use of the second damper 32.

[0073] In one embodiment, the third buffer mechanism 4 further comprises a plurality of first fixed pulleys 44; the first fixed pulleys 44 are rotationally connected with the vehicle body 1, and the blocking rope 41 abuts against the bottom plate 43 after passing through the first fixed pulleys 44. By arranging the first fixed pulleys 44, the wear of the bottom plate 43 by the blocking rope 41 can be reduced, and the service life of the bottom plate 43 and the blocking rope 41 can be improved.

[0074] Specifically, the bottom plate 43 is provided with a clamping groove or a pipe body, the blocking rope 41 is clamped in the clamping groove or passes through the pipe body, and the blocking rope 41 can slide relative to the clamping groove or the pipe body. Arranging the clamping groove or the pipe body can limit the displacement of the blocking rope 41 on the bottom plate 43, avoid the blocking rope 41 from sliding out of the bottom plate 43, ensure that the force position of the blocking rope 41 on the bottom plate 43 does not change, and ensure that the impact force on the bottom plate 43 is reasonable.

[0075] A second fixed pulley 45 is arranged near the opening of the storage cavity 11, the blocking rope 41 enters the first fixed pulley 44 after passing through the second fixed pulley 45, and the second fixed pulley 45 is located outside the storage cavity 11 and is used to change the direction of the pulling force of the blocking rope 41.

[0076] In one embodiment, a plurality of rollers 47 are arranged around the edge of the second push plate 33; and a sliding groove 48 for the rollers 47 to slide is arranged on the inner wall of the storage cavity 11. Arranging the rollers 47 can reduce the friction of the second push plate 33 moving in the storage cavity 11, and improve the service life of the second push plate 33 and the storage cavity 11. The rollers 47 are arranged around to ensure that the force can be evenly and reasonably transmitted to the storage cavity 11 when the push plate is subjected to an impact force.

[0077] Specifically, the rollers 47 are arranged at intervals in the depth direction of the storage cavity 11, which can reduce the torsional stress impact of the second push plate 33 caused by the gravity of the three buffer mechanisms.

[0078] In one embodiment, a through opening 12 for the blocking rope 41 to slide is arranged on the inner wall of the storage cavity 11, and the through opening 12 is strip-shaped and extends in the depth direction of the storage cavity 11. Arranging the through opening 12 can facilitate the sliding of the blocking rope 41, and also limit the movement of the blocking rope 41 on the bottom plate 43, so as to ensure that the force position of the blocking rope 41 on the bottom plate 43 is basically unchanged.

[0079] In one embodiment, the shell 21 is made of elastic material. With the shell 21 made of elastic material, it has higher elastic deformation, which facilitates the first damper 23 to absorb the impact force and can rebound to the original state after the impact force is removed, thereby improving the number of repeated uses.

[0080] Specifically, the arc shape is convex. The convex arc shape can improve the strength of the shell 21.

[0081] The shell 21 is made of rubber, which is low in cost, good in elasticity, and wear-resistant.

[0082] In one embodiment, the first damper 23, the second damper 32, and the third damper 42 are all hydraulic dampers 5. The hydraulic dampers 5 can cope with larger impact forces, and are practical and reliable.

[0083] Specifically, the hydraulic damper 5 includes a hydraulic cylinder 51, a telescopic rod 52, and a piston 53. The piston 53 divides the hydraulic cylinder 51 into two chambers, both of which are filled with hydraulic oil. A through hole 54 is formed in the piston 53. When the piston 53 moves, the hydraulic oil flows to the other chamber through the through hole 54. That is, when the piston 53 is subjected to an impact force, it will squeeze the hydraulic oil in the corresponding chamber, and the hydraulic oil will flow to the other chamber through the through hole 54. Due to the influence of the aperture of the through hole 54, the piston 53 moves slowly, thereby achieving the buffering of the impact force, increasing the action time, and reducing the effect.

[0084] The number of the blocking ropes 41 is two, and the two blocking ropes 41 are arranged at intervals on the bottom plate 43 and symmetrically arranged on both sides of the output end of the hydraulic cylinder 51. The hydraulic cylinder 51 is also provided with a third fixed pulley 46, and the blocking ropes 41 pass through the third fixed pulley 46, the second fixed pulley 45, and the first fixed pulley 44 in sequence and then enter the clamping groove or the pipe body. The arrangement of the two blocking ropes 41 can make the movement end of the third damper 42 bear force more reasonably and reduce the torsional stress of the movement end generated by the blocking ropes 41. At the same time, the two blocking ropes 41 are arranged at intervals on the bottom plate 43, which can disperse the stress of the bottom plate 43 and reduce the stress concentration.

[0085] The through hole 54 on the piston 53 of the third damper 42 is provided with a solenoid valve, which can control the opening degree of the through hole 54. By setting the solenoid valve to control the opening degree of the through hole 54, the movement speed of the piston 53 when subjected to an impact force can be controlled. That is, when the impact force is the same, the larger the opening degree of the through hole 54, the faster the piston 53 moves. Therefore, the movement speed of the piston 53 needs to be adjusted according to different impact forces to ensure the best buffering effect.

[0086] Or the two chambers in the hydraulic cylinder 51 of the third damper 42 are correspondingly connected with the oil pipes 55; the flow regulating valves 56 are arranged on the oil pipes 55; the oil pumps 58 are connected with the oil pipes 55, and the oil pumps 58 are arranged in the oil tank 57. The flow regulating valves 56 have low requirements, and a plurality of flow regulating valves 56 can be selected.

[0087] The processor, the pressure sensors arranged on the bottoms of the first dampers 23, the second dampers 32 and the third dampers 42, and the flow regulating valves are electrically connected with each other. When the first dampers 23, the second dampers 32 and the third dampers 42 are impacted, the corresponding pressure sensors transmit the pressure signals to the processor, and the processor outputs corresponding signals to the flow regulating valves according to the pressure of the pressure sensors, so as to adjust the opening degrees of the through holes of the dampers, to ensure that each damper can obtain reasonable pressure, and to reasonably distribute the impact force to the dampers for buffering, thereby avoiding the damage of the dampers due to the excessive impact force.

[0088] The processor is electrically connected with the battery body 91.

[0089] Meanwhile, the flow regulating valves 56 and the oil pumps 58 are matched, the piston 53 can be stopped at any position in the stroke of the hydraulic cylinder 51 by injecting hydraulic oil into the two corresponding chambers, the movement of the piston 53 is controlled, and the movement of the blocking rope 41 is controlled. The pulled blocking rope 41 pushes the second push plate 33 to move to the opening of the storage cavity 11, the anti-collision buffer is pushed out, manual pulling is not required, and the labor intensity of the workers is reduced.

[0090] The flow regulating valves 56 and the oil pumps 58 are electrically connected with the battery body 91.

[0091] When the anti-collision buffer needs to be retracted, the workers can push the anti-collision buffer into the storage cavity 11.

[0092] In an embodiment, the first dampers 23, the second dampers 32 and the third dampers 42 are provided with the return springs 59. The return springs 59 are arranged to automatically rebound and reset after the anti-collision buffer is used, to realize repeated use, and manual resetting is not required.

[0093] Specifically, the reset spring 59 provided in the third damper 42 cannot push the entire anti-collision buffer out of the storage cavity 11. The reset spring 59 provided in the third damper 42 cannot push the entire anti-collision buffer out of the storage cavity 11, which can avoid the entire anti-collision buffer from falling out of the storage cavity 11, and because the reset spring 59 of the third damper 42 has insufficient elastic force, the force used by the worker when manually recovering the anti-collision buffer is small, thereby reducing the working intensity of the worker.

[0094] In one embodiment, the push-out mechanism 6 for pushing the second push plate 33 out of the storage cavity 11, the recovery rope 7, and the first driving motor 8 are further included. One end of the recovery rope 7 is connected with the second push plate 33, and the other end is fixedly connected with the output end of the first driving motor 8. The push-out mechanism 6 is used to realize the push-out action of the anti-collision buffer, and manual push-out is not required. In combination with the recovery rope 7 and the first driving motor 8, the recovery of the anti-collision buffer is realized, the automation of the push-out and recovery of the anti-collision buffer is realized, manual push-pull is not required, and the labor intensity of the worker is reduced.

[0095] In one embodiment, the push-out mechanism 6 includes the driving chain 61, the push block 62, and the second driving motor 63. The second driving motor 63 is in transmission connection with the driving chain 61. The push block 62 is fixedly connected with the driving chain 61. The push block 62 can abut against the bottom plate 43. The push-out mechanism 6 realizes the push-out of the bottom plate 43 in the opening direction of the storage cavity 11 in combination with the driving chain 61, the push block 62, and the second driving motor 63, and has a simple structure and reasonable design.

[0096] Specifically, the outside of the storage cavity 11 is also a hollow structure, which is used to accommodate the push-out mechanism 6, the third damper 42, and the like.

[0097] Specifically, the first driving motor 8 and the second driving motor 63 are both in electrical connection with the battery body 91.

[0098] The above is only an optional embodiment of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present application.

Claims

1. A bumper for a bumpered vehicle, comprising a vehicle body having a receiving cavity, characterized by, Also include: The first buffering mechanism includes a shell, a connecting plate located in the shell, a plurality of first dampers; one end of each of the plurality of first dampers is hingedly arranged in the shell, and the other end is hingedly connected with the connecting plate; a plurality of the first dampers are arranged around the circumference of the connecting plate; The second buffering mechanism includes a first push plate, a plurality of second dampers, a second push plate; the first push plate is fixedly connected with the shell; the first push plate is spaced apart from the second push plate, each second damper is located between the first push plate and the second push plate, and one end of the second damper is fixedly connected with the first push plate, and the other end is fixedly connected with the second push plate; The third buffering mechanism includes a blocking cable and two third dampers; the third damper has a moving end; the two ends of the blocking cable are fixedly connected with the moving ends of the two third dampers; the second push plate is fixedly connected with a bottom plate, and the bottom plate is in abutment with the blocking cable; The battery assembly is arranged in the vehicle body, and includes a battery body and an outer shell; the battery body is fixedly installed in the outer shell, and a safety airbag bag is fixedly arranged on the outer shell and close to the storage cavity; the outer shell has an energy absorption structure; the battery body is electrically connected with the third buffering mechanism.

2. Crash cushion according to claim 1, characterized in that The second buffering mechanism further includes a first baffle and a second baffle, the first baffle is fixedly connected with the first push plate, and the first baffle is arranged around the edge of the first push plate; the second baffle is fixedly connected with the second push plate, and the second baffle is arranged around the edge of the second push plate; the end of the second baffle away from the second push plate is located in the cavity surrounded by the first baffle, and the first baffle can move relative to the second baffle.

3. The crash cushion of claim 1, wherein, The third buffering mechanism further includes a plurality of first fixed pulleys; the first fixed pulley is rotatably connected with the vehicle body, and the blocking cable is in abutment with the bottom plate after passing through the first fixed pulley.

4. The crash cushion of claim 1, wherein, The edge of the second push plate is provided with a plurality of rollers; a sliding groove for the rollers to slide is formed in the inner wall of the storage cavity.

5. The crash cushion of claim 1, wherein, A through opening for the blocking cable to slide is formed in the inner wall of the storage cavity, and the through opening is strip-shaped and extends along the depth direction of the storage cavity.

6. The crash cushion of claim 1, wherein, The shell is arc-shaped, and the shell is made of elastic material.

7. The crash cushion of claim 1, wherein, The first damper, the second damper, and the third damper are all hydraulic dampers.

8. The crash cushion of claim 1, wherein, Reset springs are arranged in the first damper, the second damper, and the third damper.

9. The crash cushion of claim 1, wherein, It also includes a pushing mechanism for pushing the second push plate out of the storage cavity, a retracting rope, and a first drive motor; one end of the retracting rope is connected with the second push plate, and the other end is fixedly connected with the output end of the first drive motor.

10. Crash cushion according to claim 9, characterized in that The pushing mechanism includes a drive chain, a push block, and a second drive motor; the second drive motor is in transmission connection with the drive chain; the push block is fixedly connected with the drive chain; the push block can be in abutment with the bottom plate.

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