CN2490023Y

CN2490023Y - Hydraulic anti-collision safety beam

Info

Publication number: CN2490023Y
Application number: CN 01238206
Authority: CN
Inventors: 唐林坤
Original assignee: Xuzhou Mineral Group Co Ltd Electromechanical Equipment Branch
Current assignee: Xuzhou Mineral Group Co Ltd Electromechanical Equipment Branch
Priority date: 2001-06-06
Filing date: 2001-06-06
Publication date: 2002-05-08
Anticipated expiration: 2011-06-06

Abstract

The utility model relates to a hydraulic anti-collision safety beam for motor vehicles. A hydraulic spring device is installed at the back of the safety beam of the motor vehicle. The hydraulic spring device is accurately sealed and assembled by a set of piston connecting rods, big and small pistons, and big and small diameter cylinders of a reducing cylinder. The wall and the cap of the small diameter cylinder are respectively provided with paths, one-way unloaded orifice valves and one-way orifice valves, which are communicated by metal pipes. The structure can cause the highly pressurized liquid to flow in a damping way and can cause impacted kinetic energy to be changed into compressed potential energy. The compressed potential energy is discharged slowly to effectively reduce the impacting force of the motor vehicles and effectively secure the drivers and the passengers' safety.

Description

Fluid power impact resistance security insurance is shouldered

The utility model relates to a kind of insurance of self-propelled vehicle and shoulders device, and especially a kind of fluid power impact resistance security insurance is shouldered.

At present, the insurance of using on the self-propelled vehicle is shouldered, and bumps under the situation of relative velocity 4km/h～16km/h, the structure that insurance is shouldered is injury-free, surpass this speed, insurance shoulders and the front and back casing will be subjected to obvious damage, sometimes even can cause the serious consequence of car crash.Therefore, improve the impact resistant capability that car insurance is shouldered, further improve the safety performance of self-propelled vehicle, its economic benefit and social benefit are all fairly obvious.

The purpose of this utility model provides a kind of fluid power impact resistance security insurance and shoulders, it adopts fluid power elasticity technology, can produce higher impact resistance stress, the relative velocity of safety collision can be brought up to 28km/h～60km/h, it can be adjusted by changing its parameter, and this insurance that is meant that wherein a kind of roadlice is used is shouldered, and can obviously improve the impact resistance stress that automobile insurance is shouldered, obviously improve the safety performance of vehicle, have good economic benefits and social benefit.

The purpose of this utility model is achieved in that at rear that motor vehicle insurance is shouldered crossbeam (1) hinged by pin and pin-and-hole (2), add and load onto the liquid spring device, this device is dressed up by reducing piston set and reducing cylinder body (14) two big assemblies, one end of piston rod (3) is installed a piston pole cap (18), the piston pole cap has pin-and-hole (2) on one side, the internal diameter on one side and the external diameter of piston rod are fastenedly connected, the other end of piston rod and big piston (5) fixedly fuse, and big piston (5), connecting rod (7) are captiveed joint with valve piston (8) and be integral; Reducing cylinder body (14) is the sealing of one one end, and an end opening forms the metallic cylinder of small one and large one diameter cavity, big piston (5) and valve piston (8), respectively with reducing cylinder body (14) in the cavity precision of small one and large one diameter be sealed and matched; Closed end at reducing cylinder body (14) has a minor diameter cylinder passage (11) that passes casing wall, and minor diameter cylinder passage is being fastenedly connected unilateral unloading damping valve (12); On big piston (5), there are two rod end chamber passages (5-1) to be connected with piston rod cavity (3-1), external diameter at reducing cylinder body open end tightens a connection cylinder cap (4), the cylinder cap is a concave metal part that small one and large one two kinds of internal diameter sizes are arranged, its large diameter is fastenedly connected with the external diameter of reducing cylinder body, the installation that is sealed and matched of its same piston rod of little internal diameter (3) precision, one cylinder cap passage (17) is arranged on the sidewall of cylinder cap, cylinder cap passage one end leads to piston rod exocoel (15), the other end is being fastenedly connected one-way damper valve (16), be fastenedly connected metal tube (13) between one-way damper valve and the unilateral unloading damping valve (12), big at cylinder body, minor diameter chamber (6), (9) filled with fluid respectively and in the rod end chamber (3-1) has also loaded in mixture air bag (10) simultaneously in minor diameter chamber (9).

Owing to adopted such scheme, can reach motor insurance and shoulder and have very high impact resistant capability, can improve the safety of self-propelled vehicle and the purpose of its economic benefit and social benefit greatly.

The utility model is described in further detail below in conjunction with drawings and Examples:

Accompanying drawing is a structure principle chart of the present utility model;

Among the figure, crossbeam 2 pin and pin-and-hole 3 piston rod 3-1 piston rod cavities 4 cylinder caps 5 big piston 5-1 rod end chamber passages 6 major diameter cylinders 7 connecting rods 8 valve pistons 9 minor diameter cylinders 10 air bags 11 minor diameter cylinder passages 12 unilateral unloading damping valves 13 metal tubes 14 reducing cylinder bodies 15 piston rod exocoel cylinders 16 one-way damper valves 17 cylinder cap passages 18 piston pole caps are shouldered in 1 insurance

In the drawings, when the collision stress of self-propelled vehicle occurs in insurance and shoulders crossbeam (1) and go up, the all or part of compression energy that is converted into liquid spring of the kinetic energy of self-propelled vehicle, at this moment big, little cylinder big, valve piston moment is pressed to the minor diameter cylinder on one side, greatly, the liquid and the air bag of minor diameter cylinder are subjected to high pressure, unilateral unloading damping valve (12) is opened, liquid in the minor diameter cylinder (9) is promptly by unilateral unloading damping valve (12), metal tube (13) and one-way damper valve (16), enter piston rod exocoel cylinder (15), when big valve piston resilience, big piston is subjected to the damping of the interior liquid of piston rod exocoel cylinder (15), at this moment behind the liquid pressurized of piston rod exocoel cylinder from one-way damper valve (16), metal tube (13) and unilateral unloading damping valve (12) are back to again in the minor diameter cylinder (9), after liquid is subjected to damping like this, make compression potential energy obtain slowly discharging, thereby actv. is cut down the collision stress and the bounce-back stress of self-propelled vehicle, ensured driver and crew's safety effectively.

Claims

1, a kind of automobile-use fluid power impact resistance security insurance is shouldered, form by liquid spring and one-way damper valve, it is characterized in that: the hinged of pin and pin-and-hole (2) passed through at the rear of shouldering crossbeam (1) at motor vehicle insurance, add and load onto the liquid spring device, this device holds liquid by reducing piston set, reducing cylinder body (14) and buffering and forms, one end of piston rod (3) is installed a piston pole cap (18), on one side the piston pole cap has pin and pin-and-hole (2), Yi Bian internal diameter and the external diameter of piston rod be fastenedly connected; The other end of piston rod and big piston (5) fixedly fuse, and big piston (5), connecting rod (7) are captiveed joint with valve piston (8) and be integral; Reducing cylinder body (14) is the sealing of one one end, an end opening, in the metallic cylinder of small one and large one diameter cavity is arranged, big piston (5) and valve piston (8), respectively with reducing cylinder body (14) in the cavity of small one and large one diameter, precision is sealed and matched; Closed end at reducing cylinder body (14) has a minor diameter cylinder passage (11) that passes casing wall, and minor diameter cylinder passage is being fastenedly connected unilateral unloading damping valve (12); On big piston, there are two rod end chamber passages (5-1) to be connected with rod end chamber (3-1), external diameter at reducing cylinder body open end tightens a connection cylinder cap (4), the cylinder cap is a concave metal part that small one and large one two kinds of internal diameter sizes are arranged, its large diameter is fastenedly connected with the external diameter of reducing cylinder body, the installation that is sealed and matched of its same piston rod of little internal diameter (3), one cylinder cap passage (17) is arranged on the sidewall of cylinder cap, cylinder cap passage one end leads to piston rod exocoel (15), the other end is being fastenedly connected one-way damper valve (16), is being fastenedly connected metal tube (13) between one-way damper valve and the unilateral unloading damping valve (12).

2, a kind of automobile according to claim 1 is shouldered with fluid power impact resistance security insurance, it is characterized in that: difference filled with fluid in large and small diameter chamber (6), (9) and the piston rod cavity (3-1) of reducing cylinder body has also loaded in mixture air bag (10) simultaneously in minor diameter chamber (9).