Lift car damping component with buffering function

Abstract

The invention discloses a car damping component with a buffering function, and relates to the technical field of damping. The problem of energy absorption effect is solved. The load-bearing seat is used for supporting the lift car and arranged at the bottom of the lift car, the energy conversion mechanisms are arranged at the bottom of the load-bearing seat, each energy conversion mechanism comprises two hydraulic damping rods which are obliquely and oppositely arranged, and the tops of the two hydraulic damping rods are rotationally connected to the load-bearing seat through a hollow shaft. On one hand, the two oppositely-inclined hydraulic damping rods are used for achieving buffering, so that the buffering distance can be increased, the buffering effect is improved, on the other hand, the hydraulic damping rods achieve buffering through fluid resistance, on the basis, the fluid flowing sectional area can be changed through relative sliding of the valve element and the valve body, and therefore soft and hard control is achieved; and in cooperation with'induction 'of the air bag to the quality of the lift car, on the basis that hardness control can be achieved, the hardness can be automatically adjusted in a self-adaptive mode according to the specific quality of the lift car, and the damping, buffering and energy absorbing effects and quality are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of shock absorption technology, and in particular to a car shock absorption component with a buffer function. Background Technology

[0002] When the elevator car falls due to an accident, it is relatively high in height and has a large mass. In order to ensure the safety of the car and its passengers, shock-absorbing components are installed at the bottom of the car to cushion and absorb the kinetic energy of the fall.

[0003] A search revealed a Chinese patent publication number CN211283366U, which discloses a shock-absorbing elevator car. The car has a seat, and the lower part of the car wall has a seat compartment. The seat is movably installed in the seat compartment in a push-pull state. The seat includes a frame, a seat cushion, outer wheel assemblies, inner wheel assemblies, and a limiting device. The brackets of the outer wheel assemblies and the inner wheel assemblies are respectively provided with first springs. Two mounting brackets are provided at the positions corresponding to the bottom of the seat, and the upper ends of the two first springs are fixed to the two mounting brackets.

[0004] The aforementioned patent has the following shortcomings: it uses electromagnetic and spring to achieve shock absorption, but its soft and hard adjustment cannot be adjusted according to the actual weight of the car and the mass of the passengers. This means that when the mass is large and the shock absorption is soft, it cannot provide reliable protection, and when the shock absorption is hard and the mass is small, the buffering force is large, reducing the buffering effect.

[0005] Therefore, the present invention proposes a car shock absorption component with a buffer function. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a car shock absorber with a buffer function.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A car damping component with a buffer function includes a load-bearing base for supporting the car and disposed at the bottom of the car, and multiple sets of transducer mechanisms disposed at the bottom of the load-bearing base.

[0009] The transducer mechanism includes two inclined opposing hydraulic damping rods. The tops of the two hydraulic damping rods are rotatably connected to the load-bearing seat via hollow shafts, and the other ends of the two hydraulic damping rods are rotatably connected to the same load-bearing head via connectors.

[0010] The bottom of the load-bearing seat is fixed with an oil tank by bolts, and the oil port of the hydraulic damping rod is connected to a throttle valve, the other end of which is connected to the oil tank.

[0011] The hydraulic damping rod includes a cylinder and a piston assembly slidably connected to the inner wall of the cylinder. A spring is fastened to the top of the piston assembly, the other end of the spring is fastened to the inner wall of the cylinder, and a piston rod is fixed to the outer wall of the piston assembly.

[0012] The throttle valve includes a valve body and a valve core that slides within the inner wall of the valve body. The inner wall of the spring has a flow channel one, and the inner wall of the valve core has a flow channel two corresponding to the flow channel one. One end of the valve core is fixed with a leaf spring, and the other end of the leaf spring is limited and fitted to the inner wall of the valve body.

[0013] The valve body has a side wall welded to and connected to an air nozzle;

[0014] The load-bearing base includes a fixed base and a mounting base movably connected to the fixed base. An air bladder is fixed to the inner wall of the fixed base, and the mounting base contacts and cooperates with the air bladder. The air bladder is connected to an air nozzle.

[0015] Preferably, the two mating connectors engage with each other through teeth provided on their outer walls.

[0016] Furthermore, the hydraulic oil contains magnetic powder, and an electromagnet is fixed to the outside of the oil inlet of the throttle valve.

[0017] Based on the aforementioned scheme: the transducer mechanism further includes an energy sensing component, which includes a rotor core and a stator winding that cooperate with each other. The stator winding is fixed to the bottom of the support base. A sun gear is fixedly connected to one side of the rotor core via a sun shaft. Multiple planet gears are meshed on the outer wall of the sun gear. The side walls of the planet gears are rotatably connected to the same support plate. The support plate is fixed to the bottom outer wall of the support base by bolts. The outer walls of the multiple planet gears are meshed with the same external gear ring, which is fixed to the side wall of the hollow shaft.

[0018] A better option among the aforementioned solutions is that the stator winding is electrically connected to the terminals of the electromagnet.

[0019] As a further aspect of the present invention: the energy transducer further includes a friction energy absorption component, the friction energy absorption component includes a rotating roller and a plurality of friction blocks, the rotating roller is welded to the end of the hollow shaft, and the inner cavity of the rotating roller is connected to the inner cavity of the hollow shaft, and the hollow shaft and its inner cavity are connected to the inner cavity of the cylinder.

[0020] Meanwhile, the friction blocks are arranged in a circular array and slidably connected to the radial direction of the rotating roller. All the friction blocks are connected by an elastic body, and the outer side of all the friction blocks is in contact with the same friction ring, which is fixed to the bottom outer wall of the support seat.

[0021] As a preferred embodiment of the present invention, the piston assembly includes a piston ring and a solid plug, both of which are slidably connected to the inner wall of the cylinder, and a plurality of arc-shaped spring pieces are fixed on the outer wall of the opposite side of the piston ring and the solid plug.

[0022] Meanwhile, a flexible pad is fixed to the outer wall of the piston ring and the solid plug on the opposite side of the arc-shaped spring.

[0023] As a preferred embodiment of the present invention: scraper rings are fixed to the top outer wall of the piston ring and the bottom outer wall of the solid plug, and the scraper rings are in contact with and fitted to the inner wall of the cylinder.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. This invention utilizes two opposing, inclined hydraulic damping rods to achieve buffering, thereby increasing the buffering distance and enhancing the buffering effect. On the other hand, the hydraulic damping rods utilize fluid resistance to achieve buffering. Furthermore, the relative sliding between the valve core and the valve body can change the fluid flow cross-sectional area, thereby achieving soft and hard control. In addition, by combining this with the airbag's "sensing" of the car's mass, it can not only achieve soft and hard control but also automatically adjust the soft and hard according to the specific mass of the car, ensuring the effectiveness and quality of shock absorption and energy absorption.

[0026] 2. This invention, by combining magnetic powder and electromagnets, can adjust the buffering stiffness according to the magnitude of the impact force. Based on this, a rotor core and stator winding are set up, and the rotational speed of the hollow shaft is detected by the rotor core. Then, by combining the correlation between the rotational speed of the hollow shaft and the magnitude of the impact force, the buffering stiffness can be automatically and adaptively adjusted according to the magnitude of the impact force.

[0027] 3. In this invention, by setting the cooperation of the external gear ring, planetary gears and sun gear, the rotational speed of the hollow shaft is converted to the rotor core, thereby achieving an acceleration effect, which in turn increases the voltage generated in the stator winding, thus ensuring the reliability of its electromagnet drive.

[0028] 4. This invention, by setting friction blocks and friction rings, utilizes the frictional force between them to achieve damping of the hollow shaft, thereby absorbing impact energy and further increasing the absorption effect. Furthermore, by utilizing the interconnected rotating rollers, hollow shaft, and cylinder, combined with the characteristic that the greater the impact force, the greater the oil pressure in the cylinder cavity, the friction damping can be automatically and adaptively adjusted according to the magnitude of the impact force.

[0029] 5. In this invention, the piston assembly is configured as a combination of piston rings and solid plugs, with an arc-shaped spring sheet between them as a support and a flexible pad as a flexible sealing connection. This allows the flexible pad to expand outward under the action of oil pressure when subjected to high impact pressure, thereby ensuring the reliability of the seal between the entire piston assembly and the cylinder. In addition, since there is magnetic powder in the hydraulic oil, a scraper ring is provided to prevent the magnetic powder from adhering to the inner wall of the cylinder, ensuring operational reliability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a car shock absorber with buffering function proposed in this invention.

[0031] Figure 2 This is a schematic diagram of the tooth structure of a car shock absorber with buffering function proposed in this invention;

[0032] Figure 3 This is a schematic diagram showing the positional structure of the hydraulic damping rod, energy sensing component, and friction energy absorption component of a car shock absorption component with buffering function proposed in this invention.

[0033] Figure 4 This is a cross-sectional schematic diagram of the hydraulic damping rod of a car shock absorption component with buffering function proposed in this invention.

[0034] Figure 5 This is a cross-sectional schematic diagram of a throttle valve for a car shock absorber component with buffering function proposed in this invention.

[0035] Figure 6 This is an exploded structural diagram of the load-bearing seat of a car shock-absorbing component with buffer function proposed in this invention.

[0036] Figure 7 This is a cross-sectional schematic diagram of a piston assembly of a car shock absorber with a buffer function proposed in this invention.

[0037] Figure 8 Schematic cross-sectional view of a friction energy absorption assembly for a car shock absorber with buffering function proposed in this invention. Figure 1 ;

[0038] Figure 9 Schematic cross-sectional view of a friction energy absorption assembly for a car shock absorber with buffering function proposed in this invention. Figure 2 ;

[0039] Figure 10 This is a cross-sectional structural diagram of the energy sensing component of a car shock absorption component with buffering function proposed in this invention.

[0040] In the diagram: 1. Support seat; 2. Transducer mechanism; 3. Support head; 4. Connector; 5. Hydraulic damping rod; 6. Hollow shaft; 7. Gear; 8. Energy sensing component; 9. Friction energy absorption component; 10. Oil tank; 11. Throttle valve; 12. Cylinder body; 13. Piston rod; 14. Piston assembly; 15. Spring; 16. Valve body; 17. Flow channel one; 18. Leaf spring; 19. Flow channel two; 20. Valve core; 21. Air nozzle ; 22. Fixed seat; 23. Airbag; 24. Mounting seat; 25. Scraper ring; 26. Piston ring; 27. Flexible pad; 28. Arc-shaped spring; 29. ​​Solid plug; 30. Friction ring; 31. Friction block; 32. Rotary roller; 33. Elastomer; 34. External gear ring; 35. Support plate; 36. Planetary gear; 37. Rotor core; 38. Sun shaft; 39. Stator winding; 40. Sun gear; 41. Electromagnet. Detailed Implementation

[0041] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0042] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] Example 1:

[0044] A car shock absorber with a buffer function, such as Figure 1-10 As shown, it includes a load-bearing seat 1 for supporting the car and set at the bottom of the car, and multiple sets of transducer mechanisms 2 set at the bottom of the load-bearing seat 1. The transducer mechanism 2 includes two inclined opposing hydraulic damping rods 5. The tops of the two hydraulic damping rods 5 are rotatably connected to the load-bearing seat 1 through a hollow shaft 6, and the other ends of the two hydraulic damping rods 5 are rotatably connected to the same load-bearing head 3 through a connector 4.

[0045] The bottom of the load-bearing seat 1 is fixed with an oil tank 10 by bolts, and the oil port of the hydraulic damping rod 5 is connected to a throttle valve 11. The other end of the throttle valve 11 is connected to the oil tank 10.

[0046] The hydraulic damping rod 5 includes a cylinder 12 and a piston assembly 14 slidably connected to the inner wall of the cylinder 12. A spring 15 is fastened to the top of the piston assembly 14, and the other end of the spring 15 is fastened to the inner wall of the cylinder 12. A piston rod 13 is fixed to the outer wall of the piston assembly 14.

[0047] The throttle valve 11 includes a valve body 16 and a valve core 20 that slides on the inner wall of the valve body 16. The inner wall of the spring 15 has a flow channel 17, and the inner wall of the valve core 20 has a flow channel 19 corresponding to the flow channel 17. One end of the valve core 20 is fixed with a leaf spring 18, and the other end of the leaf spring 18 is limited and fitted to the inner wall of the valve body 16.

[0048] The valve body 16 has a side wall welded to and connected to an air nozzle 21.

[0049] The load-bearing base 1 includes a fixed base 22 and a mounting base 24 movably connected to the fixed base 22. An airbag 23 is fixed to the inner wall of the fixed base 22, and the mounting base 24 is in contact with the airbag 23. The airbag 23 is connected to the air nozzle 21.

[0050] In use, when the car falls abnormally, the load-bearing head 3 will first contact the ground, transmitting the impact force to the load-bearing head 3. The piston rod 13 is then subjected to the impact force, which is transmitted to the piston assembly 14. The piston assembly 14 slides relative to the cylinder 12, utilizing the elastic force of the spring 15 for buffering. On the other hand, the hydraulic oil in the cylinder 12 will also flow to the oil tank 10 through the flow channel 17 and the flow channel 29, thus utilizing the fluid resistance of the hydraulic oil to achieve buffering. Furthermore, when the overall mass of the car is greater, the pressure of the mounting seat 24 on the fixed seat 22 is greater, the force on the airbag 23 increases, and the pressure inside it increases, thereby increasing the pressure at the air nozzle 21. This causes the valve core 20 to move against the elastic force of the leaf spring 18, thus utilizing the misalignment of the flow channel 17 and the flow channel 29 to achieve throttling and change the fluid flow resistance.

[0051] This device utilizes two opposing, inclined hydraulic damping rods 5 to achieve buffering, thereby increasing the buffering distance and enhancing the buffering effect. On the other hand, the hydraulic damping rods 5 utilize fluid resistance to achieve buffering. Furthermore, the relative sliding between the valve core 20 and the valve body 16 can change the fluid flow cross-sectional area, thereby achieving soft and hard control. In addition, with the airbag 23 "sensing" the car's mass, it can not only achieve soft and hard control but also automatically adjust the soft and hard according to the specific mass of the car, ensuring the effectiveness and quality of shock absorption and energy absorption.

[0052] To solve the synchronization problem; such as Figure 2 As shown, the two mating connectors 4 mesh with each other through the teeth 7 provided on their outer walls.

[0053] By setting the teeth 7, the two connectors 4 rotate at the same speed relative to the load-bearing head 3, thereby preventing tilting caused by the different movement amplitudes of the two hydraulic damping rods 5.

[0054] To solve the problem of energy absorption effect; such as Figure 3As shown, the hydraulic oil contains magnetic powder, and an electromagnet 41 is fixed to the outside of the oil inlet of the throttle valve 11.

[0055] The transducer 2 also includes a sensing component 8, which includes a rotor core 37 and a stator winding 39 that cooperate with each other. The stator winding 39 is fixed to the bottom of the support base 1. A sun gear 40 is fixedly connected to one side of the rotor core 37 via a sun shaft 38. Multiple planet gears 36 are meshed on the outer wall of the sun gear 40. The side walls of the planet gears 36 are rotatably connected to the same support plate 35. The support plate 35 is fixed to the bottom outer wall of the support base 1 by bolts. The outer walls of the multiple planet gears 36 are meshed with the same external gear ring 34. The external gear ring 34 is fixed to the side wall of the hollow shaft 6.

[0056] The stator winding 39 is electrically connected to the terminals of the electromagnet 41.

[0057] Because the hydraulic oil contains magnetic powder, when the electromagnet 41 is energized and generates a magnetic field, the hydraulic oil flowing through the electromagnet 41 will experience flow resistance due to the magnetic force. Furthermore, the greater the current on the inner wall of the electromagnet 41, the greater the magnetic attraction, resulting in greater fluid resistance and a harder buffer, and vice versa. Moreover, the greater the impact force on the car, the faster the hydraulic damping rod 5 contracts, which in turn causes the hollow shaft 6 to rotate faster, which in turn causes the external gear ring 34 to rotate faster. This results in a greater relative speed between the rotor core 37 and the stator winding 39, a greater output voltage of the stator winding 39, and consequently, a greater current in the electromagnet 41.

[0058] This device, through the combination of magnetic powder and electromagnet 41, can adjust the buffering hardness according to the magnitude of the impact force. Based on this, a rotor core 37 and a stator winding 39 are set up. The rotor core 37 detects the rotational speed of the hollow shaft 6, and then combines the correlation between the rotational speed of the hollow shaft 6 and the magnitude of the impact force, thereby enabling adaptive and automatic adjustment of the buffering hardness according to the magnitude of the impact force.

[0059] Furthermore, by setting the external gear ring 34, planetary gear 36 and sun gear 40 in cooperation, this device can achieve an acceleration effect when the rotational speed of the hollow shaft 6 is transferred to the rotor core 37, thereby increasing the voltage generated in the stator winding 39 and ensuring the reliability of its drive for the electromagnet 41.

[0060] like Figure 3As shown, the energy transducer 2 also includes a friction energy absorption component 9, which includes a rotating roller 32 and a plurality of friction blocks 31. The rotating roller 32 is welded to the end of the hollow shaft 6, and the inner cavity of the rotating roller 32 is connected to the inner cavity of the hollow shaft 6. The hollow shaft 6 and its inner cavity are connected to the inner cavity of the cylinder 12. The friction blocks 31 are arranged in a circular array and slidably connected to the radial direction of the rotating roller 32. All the friction blocks 31 are connected by an elastic body 33. The outer sides of all the friction blocks 31 are in contact with the same friction ring 30. The friction ring 30 is fixed to the bottom outer wall of the support seat 1.

[0061] When the impact force is greater, the oil pressure in the inner cavity of the cylinder 12 is greater, which in turn increases the relative oil pressure in the inner cavities of the hollow shaft 6 and the rotating roller 32. This results in greater pressure on the friction block 31, greater contact pressure between the friction block 31 and the friction ring 30, and thus greater friction. This friction is used to limit the rotation of the hollow shaft 6, thereby achieving energy absorption from the impact.

[0062] This device, by setting friction block 31 and friction ring 30, utilizes the friction between them to achieve damping of hollow shaft 6, thereby absorbing impact energy and further increasing the absorption effect. Furthermore, by utilizing the interconnected rotating roller 32, hollow shaft 6, and cylinder 12, combined with the characteristic that the greater the impact force, the oil pressure in the inner cavity of cylinder 12 is greater, thus enabling the friction damping to automatically and adaptively adjust according to the magnitude of the impact force.

[0063] In this embodiment, when the car falls abnormally, the load-bearing head 3 will first contact the ground, transmitting the impact force to the load-bearing head 3. The piston rod 13 receives the impact force from the piston rod 13, which is then transmitted to the piston assembly 14. The piston assembly 14 slides relative to the cylinder body 12, utilizing the elastic force of the spring 15 for buffering. On the other hand, the hydraulic oil in the cylinder body 12 will also flow to the oil tank 10 through the flow channel 17 and the flow channel 29, thus utilizing the fluid resistance of the hydraulic oil for buffering. Furthermore, when the overall mass of the car is greater, the pressure of the mounting seat 24 on the fixed seat 22 is greater, the force on the airbag 23 increases, and the pressure inside it increases, thereby increasing the pressure at the air nozzle 21. This causes the valve core 20 to move against the elastic force of the leaf spring 18, thus utilizing the misalignment of the flow channel 17 and the flow channel 29 to achieve throttling and change the fluid flow resistance. Moreover, since the hydraulic oil contains magnetic powder, when the electromagnet 41 is energized to generate a magnetic field, the hydraulic oil... When pressurized oil flows through electromagnet 41, the magnetic force generates flow resistance. The greater the current on the inner wall of electromagnet 41, the greater the magnetic attraction, resulting in greater fluid resistance and a harder buffer. Conversely, the greater the impact force on the car, the faster the hydraulic damping rod 5 contracts, leading to a faster rotation speed of hollow shaft 6 and external gear ring 34. This results in a higher relative rotation speed between rotor core 37 and stator winding 39, a higher output voltage of stator winding 39, and a higher current in electromagnet 41. Simultaneously, a greater impact force increases the oil pressure inside cylinder 12, leading to a relative increase in oil pressure between hollow shaft 6 and roller 32. This increases the pressure on friction block 31, the contact pressure between friction block 31 and friction ring 30, and thus the friction force. This friction force is used to limit the rotation of hollow shaft 6, thereby absorbing impact energy.

[0064] Example 2:

[0065] A car shock absorber with a buffer function, such as Figure 7 As shown, in order to solve the reliability problem, this embodiment makes the following improvements based on embodiment 1: The piston assembly 14 includes a piston ring 26 and a solid plug 29. The piston ring 26 and the solid plug 29 are slidably connected to the inner wall of the cylinder body 12. A plurality of arc-shaped spring pieces 28 are fixed on the outer wall of the opposite side of the piston ring 26 and the solid plug 29. A flexible pad 27 is fixed on the outer wall of the opposite side of the piston ring 26 and the solid plug 29 located around the arc-shaped spring pieces 28.

[0066] The top outer wall of the piston ring 26 and the bottom outer wall of the solid plug 29 are both fixed with scraper rings 25, which are in contact with the inner wall of the cylinder 12.

[0067] In this embodiment, the piston assembly 14 is configured as a combination of piston ring 26 and solid plug 29, with an arc-shaped spring sheet 28 provided between them as a support and a flexible pad 27 provided as a flexible sealing connection. This allows the flexible pad 27 to expand outward under the action of oil pressure when subjected to high impact pressure, thereby ensuring the reliability of the seal between the entire piston assembly 14 and the cylinder 12. In addition, since there is magnetic powder in the hydraulic oil, a scraper ring 25 is provided to prevent the magnetic powder from adhering to the inner wall of the cylinder 12, thus ensuring operational reliability.

[0068] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A car shock absorber with a buffer function, comprising a load-bearing seat (1) for supporting the car and disposed at the bottom of the car, and multiple sets of transducer mechanisms (2) disposed at the bottom of the load-bearing seat (1), characterized in that, The transducer mechanism (2) includes two inclined opposing hydraulic damping rods (5). The tops of the two hydraulic damping rods (5) are rotatably connected to the load-bearing seat (1) via a hollow shaft (6). The other ends of the two hydraulic damping rods (5) are rotatably connected to the same load-bearing head (3) via a connector (4). The bottom of the load-bearing seat (1) is fixed with an oil tank (10) by bolts. The oil port of the hydraulic damping rod (5) is connected to a throttle valve (11), and the other end of the throttle valve (11) is connected to the oil tank (10). The hydraulic damping rod (5) includes a cylinder (12) and a piston assembly (14) slidably connected to the inner wall of the cylinder (12). A spring (15) is fastened to the top of the piston assembly (14), and the other end of the spring (15) is fastened to the inner wall of the cylinder (12). A piston rod (13) is fixed to the outer wall of the piston assembly (14). The throttle valve (11) includes a valve body (16) and a valve core (20) that slides on the inner wall of the valve body (16). The inner wall of the spring (15) is provided with a flow channel one (17), and the inner wall of the valve core (20) is provided with a flow channel two (19) corresponding to the flow channel one (17). One end of the valve core (20) is fixed with a leaf spring (18), and the other end of the leaf spring (18) is limited and fitted to the inner wall of the valve body (16). The valve body (16) has a side wall welded and connected to an air nozzle (21); The load-bearing base (1) includes a fixed base (22) and a mounting base (24) movably connected to the fixed base (22). An airbag (23) is fixed to the inner wall of the fixed base (22), and the mounting base (24) is in contact with the airbag (23). The airbag (23) is connected to the air nozzle (21).

2. The car shock absorber with buffering function according to claim 1, characterized in that, The two mating connectors (4) mesh with each other through the teeth (7) provided on their outer walls.

3. A car shock absorber with buffering function according to claim 1, characterized in that, The hydraulic oil contains magnetic powder, and an electromagnet (41) is fixed to the outside of the oil inlet of the throttle valve (11).

4. A car shock absorber with buffering function according to claim 3, characterized in that, The transducer (2) also includes a sensing component (8), which includes a rotor core (37) and a stator winding (39) that cooperate with each other. The stator winding (39) is fixed to the bottom of the support base (1). A sun gear (40) is fixedly connected to one side of the rotor core (37) via a sun shaft (38). Multiple planet gears (36) are meshed on the outer wall of the sun gear (40). The side walls of the planet gears (36) are rotatably connected to the same support plate (35). The support plate (35) is fixed to the bottom outer wall of the support base (1) by bolts. The outer walls of the multiple planet gears (36) are meshed with the same external gear ring (34). The external gear ring (34) is fixed to the side wall of the hollow shaft (6).

5. A car shock absorber with buffering function according to claim 4, characterized in that, The stator winding (39) is electrically connected to the terminals of the electromagnet (41).

6. A car shock absorber with buffering function according to claim 1, characterized in that, The energy transducer (2) further includes a friction energy absorption assembly (9), which includes a rotating roller (32) and a plurality of friction blocks (31). The rotating roller (32) is welded to the end of the hollow shaft (6), and the inner cavity of the rotating roller (32) is connected to the inner cavity of the hollow shaft (6). The hollow shaft (6) and its inner cavity are connected to the inner cavity of the cylinder (12).

7. A car shock absorber with buffering function according to claim 6, characterized in that, The friction blocks (31) are arranged in a circular array and slidably connected to the radial direction of the rotating roller (32). All the friction blocks (31) are connected by an elastic body (33). The outer sides of all the friction blocks (31) are in contact with the same friction ring (30). The friction ring (30) is fixed to the bottom outer wall of the support seat (1).

8. A car shock absorber with buffering function according to claim 1, characterized in that, The piston assembly (14) includes a piston ring (26) and a solid plug (29). The piston ring (26) and the solid plug (29) are slidably connected to the inner wall of the cylinder (12), and a plurality of arc-shaped spring pieces (28) are fixed on the outer wall of the opposite side of the piston ring (26) and the solid plug (29).

9. A car shock absorber with buffering function according to claim 8, characterized in that, The piston ring (26) and the solid plug (29) are located on opposite sides of the outer wall of the arc-shaped spring (28) and a flexible pad (27) is fixed.

10. A car shock absorber with buffering function according to claim 9, characterized in that, The top outer wall of the piston ring (26) and the bottom outer wall of the solid plug (29) are both fixed with scraper rings (25), which are in contact with the inner wall of the cylinder (12).

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