Shock absorption compression elastic piece for vehicle

Abstract

The utility model relates to the technical field of automobile damping, in particular to an automobile damping compression elastic piece which comprises a base, a first spring is installed at the top end of the base, the base is connected with an upper-layer disc through the first spring, an installation block is fixedly connected to the middle position of the top end of the base, and the automobile damping compression elastic piece further comprises a hydraulic rod. The hydraulic rods are mounted on the base, the mounting blocks and the upper-layer disc, and buffering and damping mechanisms are arranged in the hydraulic rods. When a vehicle encounters a bumpy road section and is buffered through a hydraulic rod and a first spring, secondary buffering is further conducted through a second spring in the buffering and damping mechanism, and meanwhile under the action of threaded connection, a rotating rod in the auxiliary damping mechanism slows down the vibration speed through the damping effect of the rotating rod; and residual vibration energy is absorbed and dispersed by means of elasticity and flexibility of third springs, so that the damping effect is effectively improved, and the driving experience of a driver and the comfort of a passenger are effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile shock absorption, especially relates to a shock absorption compression elastic piece for vehicle. BACKGROUND

[0002] The shock absorption compression elastic piece is a key component in the automobile suspension system, mainly refers to those elastic elements in the suspension system that can absorb, store and release energy, thereby playing a shock absorption and buffering role, these elements can be elastically deformed when subjected to external force, and can quickly recover to the original shape after the external force is removed, and its main function is to bear and transmit vertical load, and to moderate and inhibit the impact caused by uneven road surface, thereby providing stability and comfort for the driving of the vehicle.

[0003] The existing shock absorption compression elastic piece is mostly composed of a spring and a hydraulic rod (or a hydraulic shock absorber), although it has a certain shock absorption effect, but its structure is relatively simple, and it may not fully adapt to complex and changeable road conditions and driving requirements, especially in the long-term driving process, this structure is difficult to fully absorb and disperse the impact from the road, which easily brings the driver a jolt and uncomfortable feeling, greatly reduces the driving experience of the driver, and the practicality is poor. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that the shock absorption compression elastic piece for vehicle in the prior art is difficult to fully absorb and disperse the impact from the road in the long-term driving process of the automobile, thereby reducing the driving experience of the driver, and provides a shock absorption compression elastic piece for vehicle.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A shock absorption compression elastic piece for vehicle, comprising a base, a first spring is installed at the top end of the base, and an upper disc is connected to the base through the first spring, a mounting block is fixedly connected to the middle position of the top end of the base, and the shock absorption compression elastic piece for vehicle further comprises:

[0007] A hydraulic rod is installed on the base, the mounting block and the upper disc, and a buffer and shock absorption mechanism is arranged in the hydraulic rod, which is used for reducing the vibration or impact received by the hydraulic rod itself, and the mounting block and the hydraulic rod are located in the first spring;

[0008] The auxiliary damping mechanism comprises four groups of rotating shafts, four groups of second extrusion grooves and four groups of rotating rods, the four groups of rotating shafts are uniformly arranged at the bottom end of the upper disc, the upper disc is rotationally connected with the four groups of rotating rods through the four groups of rotating shafts, thread grooves are formed in the outer side walls of the four groups of rotating rods close to the bottom end positions, the four groups of second extrusion grooves are formed in the top end of the mounting block, and threads corresponding to the thread grooves of the rotating rods are formed in the inner side walls of the four groups of second extrusion grooves, the bottom ends of the four groups of rotating rods are located in the four groups of second extrusion grooves respectively, and buffer assemblies are arranged on the inner bottom walls of the four groups of second extrusion grooves and used for buffering the downward pressing of the rotating rods.

[0009] Preferably, the hydraulic rod comprises a fixed rod, the fixed rod is fixedly arranged on the base and the mounting block, a piston rod is slidingly connected with the top end of the fixed rod, the top end of the piston rod is fixedly connected with the bottom end of the upper disc, a first piston is fixedly arranged on the outer wall of the piston rod close to the bottom end position, the first piston is located in the fixed rod, a through hole is formed in the first piston, a downward pressing buffer mechanism is arranged on the inner bottom wall of the fixed rod and used for buffering the downward pressing of the first piston, the portion of the fixed rod above the downward pressing buffer mechanism is divided into a first movement cavity and a second movement cavity through the first piston, and hydraulic oil is arranged in the first movement cavity and the second movement cavity.

[0010] Preferably, the downward pressing buffer mechanism comprises an air bag and a second piston, the air bag is arranged on the inner bottom wall of the fixed rod, and the second piston is fixedly arranged on the top end of the air bag and slidingly connected with the inner side wall of the fixed rod.

[0011] Preferably, the buffer damping mechanism comprises a rubber block, the rubber block is inserted into the piston rod and slidingly connected with the piston rod, a first extrusion groove is formed in the top end of the rubber block, a plurality of second springs are uniformly arranged on the inner bottom wall of the first extrusion groove, the top end of the rubber block and the top end of the second springs are fixedly connected with the bottom end of the first piston, and the through hole is located outside the rubber block.

[0012] Preferably, the buffer assembly comprises a lower gasket and an upper gasket, the lower gasket is fixedly arranged on the inner bottom wall of the second extrusion groove, a plurality of third springs are arranged on the top end of the lower gasket, and the lower gasket is connected with the upper gasket through the third springs.

[0013] Preferably, a plurality of telescopic rods are arranged on the top end of the lower gasket, the top ends of the plurality of telescopic rods are fixedly connected with the bottom end of the upper gasket, and the plurality of telescopic rods are located in the plurality of third springs respectively.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The utility model discloses a buffering damping mechanism in the hydraulic rod and the first spring can be used for buffering when the vehicle encounters the bumpy road section, and further utilizes the second spring in the buffering damping mechanism for secondary buffering, and the rotating rod in the auxiliary damping mechanism is under the action of screw connection, not only slows down the vibration speed through the damping effect, but also absorbs and disperses the residual vibration energy through the elasticity and the stretchability of the third spring, thereby effectively improving the damping effect, and further ensuring the stability of vehicle driving, effectively guaranteeing the driving experience of the driver and the comfort of the passenger.

[0016] 2. The utility model discloses the setting of buffering damping mechanism in the hydraulic rod can make the damping force of hydraulic rod more dynamic when the first piston in the hydraulic rod is in motion, when the first piston is subjected to smaller vibration, the second spring can buffer first, store a part of energy, along with the increase of vibration amplitude, the second spring will be further compressed, in this process, the elasticity of second spring and the resistance of hydraulic oil will jointly act, provide more complex and dynamic damping force for the hydraulic rod, which can effectively reduce the influence of the hydraulic rod after being subjected to larger vibration or impact, effectively prolong the service life of the hydraulic rod, on the other hand, can make the hydraulic rod better adapt to vibration of different amplitude, provide more accurate and effective damping effect, and further reduce the vibration or impact received when the automobile is driving.

[0017] 3. The utility model discloses the setting of auxiliary damping mechanism can make the hydraulic rod when carrying out damping action, can increase a vertical torque around, the vertical torque can promote the elastic piece to start playing the role in the moment, absorb and dissipate vibration energy, make the vehicle can drive more stably, especially when processing high frequency small amplitude vibration, the enhancement of this dynamic response capability can greatly improve the riding comfort, bring more stable and comfortable driving experience for the driver and the passenger, in addition, when the first spring rebounds, the rotating rod also rises, because the rotating rod and the second extrusion groove adopt the thread cooperation, this structure has certain damping effect itself, can effectively slow down the rebound speed of the first spring, avoids its rebounding too fast, thereby make the rebounding process of the elastic piece more stable, and further improve the damping effect. ACCURACY OF DRAWINGS

[0018] Figure 1 It is a side view structure schematic diagram of the utility model discloses a vehicle damping compression elastic piece;

[0019] Figure 2 It is a first motion cavity and second motion cavity mutual cooperation structure schematic diagram of the utility model discloses a vehicle damping compression elastic piece;

[0020] Figure 3A second spring and first extrusion groove mutual cooperation structure schematic view of a vehicle damping compression elastic piece is provided in the utility model.

[0021] Figure 4 An upper gasket and third spring mutual cooperation structure schematic view of a vehicle damping compression elastic piece is provided in the utility model.

[0022] In the drawing: 1, base; 2, first spring; 3, upper layer disc; 4, hydraulic rod; 5, first piston; 6, second piston; 7, second spring; 8, first extrusion groove; 9, rotating rod; 10, threaded groove; 11, second extrusion groove; 12, upper gasket; 13, third spring; 14, lower gasket; 15, telescopic rod; 16, air bag; 17, first movement cavity; 18, second movement cavity. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Reference Figures 1 to 3 A vehicle damping compression elastic piece, comprising a base 1, the top end of the base 1 is provided with a first spring 2, and the base 1 is connected with an upper layer disc 3 through the first spring 2, the middle position of the top end of the base 1 is fixedly connected with a mounting block, the base 1, the mounting block and the upper layer disc 3 are jointly provided with a hydraulic rod 4, the mounting block and the hydraulic rod 4 are located in the first spring 2, the hydraulic rod 4 comprises a fixed rod, the fixed rod penetrates through and is fixedly installed on the base 1 and the mounting block, a piston rod is slidably connected to the top end of the fixed rod, the top end of the piston rod is fixedly connected with the bottom end of the upper layer disc 3, a first piston 5 is fixedly installed on the outer wall of the piston rod close to the bottom end, the first piston 5 is located in the fixed rod, a through hole is formed in the first piston 5, a lower pressing buffer mechanism is arranged on the inner bottom wall of the fixed rod and used for buffering the pressing of the first piston 5, the part of the fixed rod above the lower pressing buffer mechanism is divided into a first movement cavity 17 and a second movement cavity 18 through the first piston 5, hydraulic oil is arranged in the first movement cavity 17 and the second movement cavity 18, the lower pressing buffer mechanism comprises an air bag 16 and a second piston 6, the air bag 16 is installed on the inner bottom wall of the fixed rod, the second piston 6 is fixedly installed on the top end of the air bag 16 and slidably connected with the inner side wall of the fixed rod.

[0025] When the vehicle encounters a bumpy road section during driving, the upper disc 3 will be pressed downward at this time, thereby pressing the first spring 2 and making it bear force, and then the hydraulic rod 4 will also be pressed, the first piston 5 will perform a downward extrusion stroke in the first movement cavity 17, thereby making the hydraulic oil flow to the second movement cavity 18 through the through hole on the first piston 5, at this time, the second piston 6 is pressed downward due to the extrusion of the oil volume, thereby conducting to the air bag 16, at this time, the resistance of the second piston 6 increases, thereby giving the second piston 6 a counterforce, and then the internal hydraulic oil is reset, and finally a damping action is realized.

[0026] With reference to Figures 2 to 3 The bottom end of the first piston 5 is provided with a buffer damping mechanism for reducing the vibration or impact suffered by the hydraulic rod 4 itself, and the buffer damping mechanism comprises a rubber block, the rubber block is inserted through the piston rod and is in sliding connection with the piston rod, a first extrusion groove 8 is formed in the top end of the rubber block, a plurality of second springs 7 are uniformly arranged in the bottom wall of the first extrusion groove 8, the top end of the rubber block and the top end of the second spring 7 are fixedly connected with the bottom end of the first piston 5, and the through hole is located outside the rubber block.

[0027] The second spring 7 in the rubber block can make the damping force of the hydraulic rod 4 more dynamic when the first piston 5 moves, when the first piston 5 is subjected to a small vibration, the second spring 7 can first buffer and store a part of energy, and with the increase of the vibration amplitude, the second spring 7 will be further compressed, and in this process, the elastic force of the second spring 7 and the resistance generated by the hydraulic oil will jointly act to provide a more complex and dynamic damping force for the hydraulic rod 4, which can effectively reduce the influence of the hydraulic rod 4 after being subjected to a large vibration or impact, effectively prolong the service life of the hydraulic rod 4, on the other hand, the hydraulic rod 4 can better adapt to vibrations of different amplitudes, and provide more accurate and effective damping effect, thereby reducing the vibration or impact suffered by the vehicle during driving, and effectively ensuring the driving experience of the driver and the comfort of the passengers.

[0028] With reference to Figures 1 to 4The upper layer disc 3 and the mounting block are jointly provided with an auxiliary damping mechanism for improving the damping effect of the elastic member, the auxiliary damping mechanism comprises four groups of rotating shafts and four groups of second extrusion grooves 11, the four groups of rotating shafts are uniformly installed at the bottom end of the upper layer disc 3, the upper layer disc 3 is rotationally connected with the four groups of rotating rods 9 through the four groups of rotating shafts, the outer side wall of the four groups of rotating rods 9 is provided with a threaded groove 10 near the bottom end position, the four groups of second extrusion grooves 11 are provided at the top end of the mounting block, and the inner side wall of the four groups of second extrusion grooves 11 is provided with threads corresponding to the threaded grooves 10 on the rotating rods 9, the bottom end of the four groups of rotating rods 9 is located in the four groups of second extrusion grooves 11 respectively, and the inner bottom wall of the four groups of second extrusion grooves 11 is provided with a buffer assembly for buffering the downward pressing of the rotating rod 9, the buffer assembly comprises a lower gasket 14 and an upper gasket 12, the lower gasket 14 is fixedly installed on the inner bottom wall of the second extrusion groove 11, a plurality of third springs 13 are installed at the top end of the lower gasket 14, the lower gasket 14 is connected with the upper gasket 12 through the third springs 13, and a plurality of telescopic rods 15 are installed at the top end of the lower gasket 14, the top end of the plurality of telescopic rods 15 is fixedly connected with the bottom end of the upper gasket 12, and the plurality of telescopic rods 15 are located in the plurality of third springs 13 respectively.

[0029] Meanwhile, when the upper layer disc 3 is pressed downward, the four groups of rotating rods 9 will be pressed downward in the four groups of second extrusion grooves 11, because the surface of the rotating rod 9 is provided with the threaded groove 10, and the threaded grooves 10 are matched with the threads on the inner side wall of the second extrusion groove 11, therefore, in the process of pressing, the rotating rod 9 will rotate along the direction of the threads, with the pressing and rotation of the rotating rod 9, the bottom end of the rotating rod 9 will contact the upper gasket 12, at this time, the upper gasket 12 will be subjected to pressure, the pressure will be transmitted to the lower gasket 14 through the third springs 13 and the telescopic rods 15, thereby increasing the buffering force, the telescopic rods 15 in the third springs 13 can play a role in limiting and supporting, such a setting can increase a vertical torque around the hydraulic rod 4 when the hydraulic rod 4 is performing the damping action, the vertical torque can help the elastic member to start to play a role in an instant, absorb and dissipate the vibration energy, reduce the jumping of the vehicle, so that the vehicle can better perform the damping, improve the adaptability of the vehicle to the change of the road surface, and enable the vehicle to travel more stably, especially when dealing with high-frequency small-amplitude vibration, the enhancement of the dynamic response capability can significantly improve the riding comfort, so that the passengers feel that the vehicle is “sliding” on the road surface, rather than “bumping” forward, and when the first spring 2 rebounds, the rotating rod 9 will also rise, under the action of the rotating rod 9, the first spring 2 will not appear the case of rebounding too fast, thereby making the rebounding process of the elastic member more stable, and further improving the damping effect.

[0030] The utility model discloses a shock absorber for vehicle, including the upper layer disc 3, the first spring 2, the hydraulic rod 4, the first piston 5, the second piston 6 and the air bag 16, the first spring 2 is arranged in the upper layer disc 3, the first spring 2 is connected with the hydraulic rod 4, the hydraulic rod 4 is connected with the first piston 5, the first piston 5 is connected with the second piston 6, the second piston 6 is connected with the air bag 16, when the vehicle installs the elastic part, and when the bumpy road section is encountered in the course of driving, the elastic part will start work, at this time the upper layer disc 3 will be extruded downwards, thereby will extrude the first spring 2, makes it stress, after because the hydraulic rod 4 also will extrude, the first piston 5 will be extruded in the first movement cavity 17 downwards, thereby makes the hydraulic oil flow to the second movement cavity 18 through the through -hole on the first piston 5, at this time because the oil volume propelling extrusion makes the second piston 6 downwards extrude, thereby conduction to the air bag 16, at this time the second piston 6 resistance increases, thereby gives the second piston 6 an action and reaction, further makes the hydraulic oil inside reset, finally realized a shock action.

[0031] And the second spring 7 in the rubber block can make the first piston 5 when moving, let the damping force of hydraulic rod 4 be more dynamic, when the first piston 5 is subjected to smaller vibration, the second spring 7 can first buffer, store a part of energy, along with the increase of vibration amplitude, the second spring 7 will be further compressed, in this process, the elasticity of second spring 7 and the resistance produced by hydraulic oil will jointly act, provide more complex and dynamic damping force for hydraulic rod 4, which can effectively reduce the influence of hydraulic rod 4 after being subjected to larger vibration or impact, effectively prolong the service life of hydraulic rod 4, on the other hand can make hydraulic rod 4 better adapt to different amplitude vibration, provide more accurate and effective shock-absorbing effect, further reduce the vibration or impact received when the car is driving, effectively guarantee the driving experience of the driver and the comfort of the passenger.

[0032] Meanwhile, when the upper layer disc 3 is pressed down, it will drive the four sets of rotating rods 9 to be pressed down in the four sets of second extrusion grooves 11. Because the rotating rods 9 are provided with screw grooves 10 on the surfaces, and the screw grooves 10 are matched with the threads on the inner walls of the second extrusion grooves 11, in the process of pressing down, the rotating rods 9 will rotate along the direction of the threads. With the pressing down and rotation of the rotating rods 9, the bottom ends of the rotating rods 9 will contact the upper gaskets 12, at this time, the upper gaskets 12 will be subjected to pressure, and the pressure will be transmitted to the lower gaskets 14 through the third springs 13 and the telescopic rods 15, so as to increase the buffering force. The telescopic rods 15 in the third springs 13 can play a role of limiting and supporting, and such a setting can increase a vertical torque around the hydraulic rod 4 when the hydraulic rod 4 performs the damping action. The vertical torque can help the elastic member to start to play a role in an instant, absorb and dissipate the vibration energy, reduce the jumping of the vehicle, and make the vehicle better to perform the damping, improve the adaptability of the vehicle to the change of the road surface, and make the vehicle more smoothly travel. Especially in the process of dealing with high-frequency small-amplitude vibration, the enhancement of the dynamic response capability can significantly improve the riding comfort, and make the passengers feel that the vehicle is like "sliding" on the road surface, rather than "bumping" forward. When the first springs 2 rebound, the rotating rods 9 will also rise, and under the action of the rotating rods 9, the first springs 2 will not appear the case of rebounding too fast, so that the rebounding process of the elastic member is more stable, and the damping effect is further improved.

[0033] The above merely describes the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A vehicle shock absorber compression elastic component, comprising a base (1), wherein a first spring (2) is mounted on the top of the base (1), and an upper plate (3) is connected to the base (1) via the first spring (2), and a mounting block is fixedly connected to the middle position of the top of the base (1), characterized in that, Also includes: Hydraulic rod (4) is mounted on base (1), mounting block and upper plate (3), and a buffer and shock absorption mechanism is provided inside the hydraulic rod (4) to reduce the vibration or impact on the hydraulic rod (4) itself. The mounting block and the hydraulic rod (4) are both located inside the first spring (2). The auxiliary damping mechanism includes four sets of rotating shafts and four sets of second extrusion grooves (11). The four sets of rotating shafts are evenly installed at the bottom of the upper plate (3). The upper plate (3) is rotatably connected to four sets of rotating rods (9) through the four sets of rotating shafts. The outer side wall of the four sets of rotating rods (9) is provided with threaded grooves (10) near the bottom. The four sets of second extrusion grooves (11) are opened at the top of the mounting block, and the inner side wall of the four sets of second extrusion grooves (11) is provided with threads corresponding to the threaded grooves (10) on the rotating rods (9). The bottom ends of the four sets of rotating rods (9) are respectively located in the four sets of second extrusion grooves (11). The bottom wall of the four sets of second extrusion grooves (11) is provided with buffer components to buffer the downward pressure of the rotating rods (9).

2. The automotive shock absorber compression elastic element according to claim 1, characterized in that, The hydraulic rod (4) includes a fixed rod, which is fixedly installed on the base (1) and the mounting block. A piston rod is slidably connected to the top of the fixed rod. The top of the piston rod is fixedly connected to the bottom of the upper plate (3). A first piston (5) is fixedly installed on the outer wall of the piston rod near the bottom. The first piston (5) is located inside the fixed rod and has a through hole. A pressure buffer mechanism is provided on the bottom wall of the fixed rod to buffer the pressure of the first piston (5). The part of the fixed rod above the pressure buffer mechanism is divided into a first motion chamber (17) and a second motion chamber (18) by the first piston (5). Hydraulic oil is provided in both the first motion chamber (17) and the second motion chamber (18).

3. The automotive shock absorber compression elastic element according to claim 2, characterized in that, The pressure buffer mechanism includes an airbag (16) and a second piston (6). The airbag (16) is installed on the inner bottom wall of the fixed rod, and the second piston (6) is fixedly installed on the top of the airbag (16) and slidably connected to the inner side wall of the fixed rod.

4. The automotive shock absorber compression elastic element according to claim 2, characterized in that, The buffer and shock absorption mechanism includes a rubber block, which is inserted through the piston rod and slidably connected to the piston rod. A first extrusion groove (8) is provided at the top of the rubber block. Multiple sets of second springs (7) are evenly installed on the bottom wall of the first extrusion groove (8). The top of the rubber block and the top of the second spring (7) are both fixedly connected to the bottom of the first piston (5). The through hole is located outside the rubber block.

5. The automotive shock absorber compression elastic element according to claim 1, characterized in that, The buffer assembly includes a lower pad (14) and an upper pad (12). The lower pad (14) is fixedly installed on the bottom wall of the second compression groove (11), and multiple sets of third springs (13) are installed on the top of the lower pad (14). The lower pad (14) is connected to the upper pad (12) through the third springs (13).

6. The automotive shock absorber compression elastic element according to claim 5, characterized in that, The lower pad (14) is equipped with multiple sets of telescopic rods (15) at its top end. The top ends of the multiple sets of telescopic rods (15) are fixedly connected to the bottom end of the upper pad (12), and the multiple sets of telescopic rods (15) are respectively located in multiple sets of third springs (13).

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