CN2744888Y

CN2744888Y - Inflatable automobile vibration-damper

Info

Publication number: CN2744888Y
Application number: CN 200420070384
Authority: CN
Inventors: 付德海
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-19
Filing date: 2004-08-19
Publication date: 2005-12-07
Anticipated expiration: 2014-08-19

Abstract

The utility model relates to an inflatable automobile vibration-damper, comprising an outer cylinder, an inner cylinder, a valve seat, an oil seal, a guide, a piston rod and a piston. An inner oil sump and an outer oil sump in the shape of a ring are arranged on the upper surface and the undersurface of the piston and the valve seat respectively; a plurality of normally open gaps are respectively arranged at the outer edging of the outer oil sump on the upper surface of the piston and the bottom edging of the valve seat; inner oil holes and outer oil holes are evenly distributed at the place corresponding to the inner oil sump and the outer oil sump in the piston and the valve seat; an oil guide plate, a gasket and an upper valve slice are superposed on the upper surfaces of the piston and the valve seat from the top to the bottom in order; an oil channel is arranged at the place of the oil guide plate and the upper valve slice correspondent to the inner oil hole; a plurality of lower valve slices and gaskets are superposed on the undersurfaces of the piston and the valve seat and fixed firmly by retaining nuts; the inner oil sump on the undersurface of the piston and the valve seat is covered with the lower valve slices of the piston and the valve seat respectively; medium oil is filled in the inner cylinder and the outer cylinder, and high-pressure gas is filled at the upper part of the outer cylinder. The utility model has the advantages of good vibration damping effect, good sealing effect, high flexibility, work stability, and long service life.

Description

Produce for Gas Car Damper

Technical field

The utility model relates to a kind of Produce for Gas Car Damper.

Background technique

Existing vehicle shock absorber is to be made of the medium oil in inner casing, the valve seat that is located at inner casing lower end mouth place, valve block and spring, outer shell, piston rod and piston, filling inner casing and the outer shell and guide way, seal ring.During assembling, in order in outer shell, to fill with oil, want earlier piston to be pressed onto the cylinder body inner bottom surface, be full of the oil back oil sealing is installed, when inner casing top is arrived in piston motion, because piston rod movement outside cylinder body, makes cylinder interior produce certain vacuum, at this moment the active force that acts on the piston of fluid is just desirable not to the utmost, thereby influences effectiveness in vibration suppression; In addition, owing to be provided with spring and change logical oil mass by spring on valve block, working sensitivity is poor; Because oil sealing directly is welded in the outer shell, sealability is subject to temperatures involved, and shorten working life.

Summary of the invention

The purpose of this utility model is to solve the problems referred to above that prior art exists, and provides a kind of good damping result, good sealing effect, highly sensitive, the Produce for Gas Car Damper of working stability, long service life.

The utility model is achieved in that it is by outer shell, inner casing, valve seat, oil sealing and guide way, piston rod and piston constitute, its special way is to be respectively equipped with circular inner oil sump and outer oil sump at the upper surface of piston and valve seat and lower surface, outer edge and place, valve seat lower edge at the outer oil sump that is positioned at piston upper surface are provided with several normal open and clear mouthful respectively, in piston and valve seat corresponding inner oil sump and outer oil sump place be provided with respectively several equally distributed in oilhole and outside oilhole, piston and valve seat upper surface by on cause down successively that closed assembly has oil guide plate, packing ring, last valve block, corresponding interior oil-hole location is provided with oil duct on said oil guide plate and the last valve block, at piston and valve seat lower surface closed assembly several lower valves and pad and fastening by tightening nut are arranged, lower valve on said piston and the valve seat covers respectively on the inner oil sump of piston and valve seat lower surface, in inner casing He in the outer shell, be filled with medium oil, be filled with pressurized gas on outer shell top.

According to above-mentioned Produce for Gas Car Damper, be provided with spring pressuring ring in oil sealing fairlead outer wall lower end, with the oil sealing effect that improves seal ring and play compensating action.

According to above-mentioned Produce for Gas Car Damper, be provided with 2-5 dentation oil sealing projection at the oil sealing inwall, to improve the oil sealing effect.

According to above-mentioned Produce for Gas Car Damper, the outer oilhole on said valve seat and the piston is circular-arc, to increase pressure, makes the valve block action sensitiveer.

The utility model has the advantages that: by injecting pressurized gas, make the medium oil in the vibration damper become high pressure oil, no matter piston motion is to any position, can both make its bottom in time be full of oil, thereby guarantee that this vehicle shock absorber has sufficient effectiveness in vibration suppression, both make the interior medium oil oxidation of vibration damper, rotten in addition, and also can not influence the performance of product; Owing to be provided with two-way inside and outside oil groove at valve seat and the upper and lower surface of piston, can increase the pressure that acts on the valve block, make the valve block action sensitiveer, by actual road conditions effect active force onboard, make oil pressure produce different active forces and act on the valve block, make valve block open corresponding angle, give birth to corresponding damping by corresponding oil miscarriage, under any road conditions, can both make vehicle have the better damping effect; By changing the kind and the quantity of valve block, can be suitable for different vehicles; Seal ring no longer includes welding process after installing, and makes it not be subjected to temperatures involved, thereby gives full play to its premium properties, guarantees the working life of this product.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a valve seat construction schematic representation in the utility model;

Fig. 3 is that the A of Fig. 2 is to view;

Fig. 4 is a piston structure schematic representation in the utility model;

Fig. 5 is that the B of Fig. 4 is to view;

Fig. 6 is an oil guide plate structural representation in the utility model;

Fig. 7 is an oil seal structure schematic representation in the utility model;

Fig. 8 is an outer shell upper end-hole rolling schematic representation among the utility model embodiment.

Among the figure: 1-outer shell, 2-inner casing, 3-valve seat, 31-inner oil sump, oilhole in the 32-outer oil sump, 33-, the outer oilhole of 34-, normal open and clear mouthful of 35-, the 4-piston, 41-inner oil sump, oilhole in the 42-outer oil sump, 43-, the outer oilhole of 44-, normal open and clear mouthful of 45-, 5-piston rod, 6-medium oil, 7-gas, 8-connecting plate, 9-pallet, 10-oil sealing, 11-guide way, 12-jump ring, the 13-edge of preventing dust, 14-oil sealing projection, 15-oil guide plate, 151-oil duct, the 16-packing ring, the last valve block of 17-, 18-lower valve, the 19-oil guide plate, 20-packing ring, the last valve block of 21-, the 22-lower valve, 23-packing ring, 24-spring pressuring ring.

Embodiment

As Fig. 1～shown in Figure 7, the utility model has an outer shell 1, outer side wall bottom at outer shell 1 is provided with connecting plate 8, outer side wall top at outer shell 1 is provided with pallet 9, place inner casing 2 in the said outer shell 1, be outer oil cavity between said outer shell 1 and the inner casing 2, in the inner casing 2 is interior oil pocket, be provided with oil sealing 10 at outer shell 1 inwall near the upper end-hole place, said oil sealing 10 is fastened on outer shell 1 inwall by jump ring 12 and (perhaps as shown in Figure 8, carries out rolling in the upper edge of outer shell 1, oil sealing 10 is fastening), be provided with undergauge in oil sealing 10 drawing-off mouths upper end and prevent dust along 13, be provided with three-five dentation oil sealing projectioies 14 at oil sealing 10 inwalls, oil sealing projection 14 is three in the present embodiment.By interference fit guide way 11 is installed in inner casing 2 upper end-hole, guide way 11 is provided with oil duct, is provided with guide sleeve at guide way 11 middle parts, by oil sealing 10 and guide way 11 inner casing 2 is fixed in the outer shell 1.In inner casing 2, be placed with piston rod 5, said piston rod 5 is drawn through guide sleeve and oil sealing 10, be provided with spring pressuring ring 24 in oil sealing 10 fairlead outer wall lower ends,, improve the oil sealing effect of oil sealing 10 and play compensating action in order to strengthen the surface of contact of oil sealing 10 and piston rod 5.Be provided with piston 4 in the lower end of piston rod 5, corresponding piston 4 places, the bottom of piston rod 5 are provided with step, be respectively equipped with circular inner oil sump 41 and outer oil sump 42 at piston 4 upper surfaces and lower surface, corresponding inner oil sump 41 and outer oil sump 42 positions are provided with several equally distributed vertically interior oilhole 43 and outer oilholes 44 on the said piston 4, said outer oilhole 44 is circular-arc, on the step of piston rod 5 and between piston 4 upper surfaces by on cause and be set with oil guide plate 15 down successively, packing ring 16, last valve block 17, said oil guide plate 15 corresponding interior oilhole 43 positions are provided with oil duct 151, and last valve block 17 is identical with oil guide plate 15 shapes.Be set with 2-5 lower valve 18 and fastening by tightening nut in piston rod 5 lower ends, said lower valve 18 covers on the inner oil sump 41 of piston 4 lower surfaces, to play the effect of one-way valve.Be provided with several normal open and clear mouthful 45 at the outer edge place of the outer oil sump 42 of the upper surface that is positioned at piston 4, lower end mouth at inner casing 2 is provided with valve seat 3, valve seat 3 and inner casing 2 interference fit, on valve seat 3, lower surface is provided with circular inner oil sump 31 and outer oil sump 32, in valve seat 3 corresponding inner oil sump 31 and outer oil sump 32 places be provided with several equally distributed in oilhole 33 and outside oilhole 34, said outer oilhole 34 is circular-arc, be provided with mounting hole at valve seat 3 middle parts, clamping bolt and nut are installed in mounting hole, at valve seat 3 upper surface closed assemblies oil guide plate 19 is arranged, packing ring 20, last valve block 21, fold at valve seat 3 lower surfaces and to fall to having lower valve 22 and packing ring 23, said oil guide plate 19 is identical with oil guide plate 15 with last valve block 21 structures, oil guide plate 19, packing ring 20, last valve block 21, lower valve 22 and packing ring 23 are installed on the valve seat 3 by the fastening screw screw bolt and nut that passes mounting hole on the valve seat 3, be provided with normal open and clear mouthful 35 in the lower edge of valve seat 3, oil pocket and outer oil cavity in being used to be communicated with.

During use, on the pallet 9 of this Produce for Gas Car Damper, shock-absorbing spring is installed, and this vehicle shock absorber is installed on the automobile car beam by connecting plate 8.Vehicle driving runs into obstacle, when piston rod 5 drive pistons 4 move downward, last valve block 17 opened with certain angle on the piston 4, the lower valve 18 of piston is closed, the medium oil 6 that is in piston 4 bottoms is flowed, to play damping vibration attenuation function from piston 4 bottoms to piston 4 tops through outer oilhole 44; 21 on the last valve of valve seat 3 cuts out simultaneously, and the lower valve 22 of valve seat 3 opens, and medium oil 6 flows from piston 4 bottoms to outer oil cavity.When piston rod 5 drive pistons 4 moved upward, the last valve block 17 of piston 4 was closed, and the lower valve 18 of piston 4 is opened certain angle, and the medium oil 6 that is in piston 4 bottoms is flowed to piston 4 bottoms from piston 4 tops through interior oilhole 43; The lower valve 22 of valve seat 3 is closed simultaneously, and the last valve block 21 of valve seat 3 opens, and the medium oil 6 that has pressure flows from the inside oil pocket of outer oil cavity, to play damping vibration attenuation function.On the road surface when more smooth, by normal open and clear mouthful 35 on normal open and clear mouthful 45 on the piston 4 and the valve seat 3, realize medium oil 6 aforesaid flowing, play damping vibration attenuation function.

Claims

1, a kind of Produce for Gas Car Damper, by outer shell, inner casing, valve seat, oil sealing and guide way, piston rod and piston constitute, it is characterized in that: upper surface and lower surface at piston and valve seat are respectively equipped with circular inner oil sump and outer oil sump, outer edge and place, valve seat lower edge at the outer oil sump that is positioned at piston upper surface are provided with several normal open and clear mouthful respectively, in piston and valve seat corresponding inner oil sump and outer oil sump place be provided with respectively several equally distributed in oilhole and outside oilhole, piston and valve seat upper surface by on cause down successively that closed assembly has oil guide plate, packing ring, last valve block, corresponding interior oil-hole location is provided with oil duct on said oil guide plate and the last valve block, at piston and valve seat lower surface closed assembly several lower valves and pad and fastening by tightening nut are arranged, lower valve on said piston and the valve seat covers respectively on the inner oil sump of piston and valve seat lower surface, in inner casing He in the outer shell, be filled with medium oil, be filled with pressurized gas on outer shell top.

2, Produce for Gas Car Damper according to claim 1 is characterized in that: be provided with spring pressuring ring in oil sealing fairlead outer wall lower end.

3, Produce for Gas Car Damper according to claim 1 is characterized in that: be provided with 2-5 dentation oil sealing projection at the oil sealing inwall.

4, according to the described Produce for Gas Car Damper of claim 1, it is characterized in that: the outer oilhole on said valve seat and the piston is circular-arc.