CN2547553Y

CN2547553Y - Passenger's vehicle door differential cylinder drive mechanism

Info

Publication number: CN2547553Y
Application number: CN 02220070
Authority: CN
Inventors: 徐大川; 伍光宽
Original assignee: JIANGSU JINWU CONTROLL SYSTEM CO Ltd
Current assignee: JIANGSU JINWU CONTROLL SYSTEM CO Ltd
Priority date: 2002-04-22
Filing date: 2002-04-22
Publication date: 2003-04-30
Anticipated expiration: 2012-04-22

Abstract

The utility model relates to a passenger's vehicle door differential cylinder drive mechanism; a box body is arranged in the center of the mechanism; two sides of the box body are respectively provided with a small cylinder and a large cylinder; two ends of the small cylinder and the large cylinder are respectively connected with an electromagnetic valve and an air supply; a small spring in the large cylinder is connected with a buffer cover; a large spring is connected with the buffer cover and a large piston; the small cylinder is provided with a small piston; a rack is connected with the large piston and the small piston; the rack is matched with a gear which is arranged on a drive shaft; the drive shaft is connected with a connecting rod of the mechanism through a turnplate; a one way valve and a door-opening speed adjusting hole are arranged on the cylinder cover; adjusting bolts are arranged on the adjusting hole; three bolts are arranged on the cylinder cover, that is a door-opening speed adjusting bolt, a door-closing speed adjusting bolt and a door-opening buffer adjusting bolt. The utility model has the advantages that: (1) when the vehicle is in the initial position of opening and closing the passenger's vehicle door, the speed is the lowest and the driving force and the locking force of opening and closing door are the largest, therefore, the vehicle door can be closed and the door can be also opened very smoothly; passenger safety is guaranteed. (2) As two doors are driven by a cylinder, two doors have good synchronicity in opening and closing. (3) The motion compatibility of the two doors can be adjusted conveniently.

Description

The differential air cylinder driven mechanism that uses on the passenger door

Technical field

The utility model relates to a kind of differential air cylinder driven mechanism that is used on the passenger door, belong to passenger vehicle vehicle technical field.

Background technology

The existing driver train that is used on the passenger door is to be driven by two identical individual cylinder, differential motion piston is arranged in the cylinder, come the crank motion of control plunger by the both sides draught head, realization is opened car door, close control, defective: two cylinders are difficult for accomplishing synchronously to two controls of fanning door, easily taking place one has opened, and another door is not also opened fully, at closing time even cause the order mountain peaks of closing the door of two fan doors to fall, sealing joint strip can not play the real effect of sealing, this mechanism also exists out, force effect at closing time is relatively poor, opens, required at closing time strength is also not enough, so its safety performance is relatively poor.

Summary of the invention

The purpose of this utility model is the defective at above-mentioned existence, proposes a kind ofly can effectively overcome the differential type air cylinder driven mechanism that there is defective in prior art, is used for passenger door, greatly improves the safety that passenger door uses.Technical solution of the present utility model: casing is located at the central authorities of mechanism, its both sides are set up a big or small cylinder separately, greatly, the both ends of little cylinder connect electromagnetic valve respectively, source of the gas, little spring and buffer cover are joined in the big cylinder, big spring and buffer cover, big piston joins, in the little cylinder valve piston is arranged, tooth bar is with big, valve piston joins, rack and pinion matches, and gear is installed on the transmission shaft, and transmission shaft joins by rotating disk and mechanism rod, establish check valve on the cylinder head and the speed setting hole of opening the door, establish set screw on the adjustment hole, three screws are arranged on the cylinder head, promptly open, the speed of closing the door and the speed-buffering set screw of opening the door.Advantage: (1) when the reference position of passenger door open and close door, its speed should be the slowest, and the propulsive effort, coupling mechanism force of the open and close door of this moment is just maximum, so can fasten, opens also very wellly, guarantees passenger safety.(2) drive two fan doors by a cylinder, so the synchronism of two fan doors when open and close is good.(3) can carry out the adjusting of coordination to two fan doors easily.

Accompanying drawing is a structural representation of the present utility model.

Among the figure 1 is casing, 2, the 3rd, large and small cylinder barrel, the 4th, and little spring, the 5th, buffer cover, the 6th, big spring, 7, the 8th, at large and small piston, the 9th, tooth bar, the 10th, gear, the 11st, transmission shaft, the 12nd, electromagnetic valve, the 13rd, source of the gas, the 14th, set screw, the 15th, cylinder head.

Specific implementation method:

By the control that enters, discharges compressed-air actuated in the big cylinder being realized car door opens and closes stingy cylinder normal open pressurized air.Three the set screw scalable open and close door speed and the buffering of opening the door on the cylinder head.Close the door: pressurized air enters big cylinder through electromagnetic valve, promotes piston and makes the rack drives drive plate drive closing of the door by connecting rod.The speed of closing the door is controlled by the set screw on the cylinder head 15.Because of unidirectional valve opening is closed this moment, so unique this SAS that depends on of the speed of closing the door.Open the door: opening the door to be discharged through electromagnetic valve by big cylinder pressurized air moves piston and drives drive plate and drive car door opening by connecting rod.When opening the door, ventilate simultaneously in the check valve and the speed setting hole of closing the door.For the effect of a buffering is arranged when opening the door, we have designed the 3rd hole in cylinder, at the 65-70% of stroke that opens the door, rubber strip of paper used for sealing on the spring disk has sealed check valve and the speed setting hole of closing the door, gas must pass through the cushion hole exhaust like this, because this cushion hole is littler than other two, gas release speed obviously reduces, the kinematic velocity of piston obviously slows down, and at car door opening a significantly slowly action is arranged at the end.Regulate: when regulating open and close and buffering speed, rotarily open the gentle several circles of joint screw that reconstitute earlier, be adjusted to a desirable closing velocity, be adjusted to a desirable opening speed then.Attention: buffering can cause opening speed slow about 1/4 second.Door may close suddenly when regulating opening speed, regulates opening speed and regulates buffering then to prevent this problem.Correct buffering is regulated the maintenance cycle that will prolong door.

Claims

1, the differential air cylinder driven mechanism that uses on the passenger door, it is characterized in that casing (1) is located at the central authorities of mechanism, its both sides are set up a big or small cylinder (2) separately, (3), greatly, little cylinder (2), (3) two ends are by cylinder head (15), (16) connect electromagnetic valve (12) respectively, source of the gas (13), the big interior little spring of cylinder (2) (4) joins with buffer cover (5), big spring (6) and buffer cover (5), big piston (7) joins, valve piston (8) is arranged in the little cylinder (3), tooth bar (9) is with big, valve piston (7), (8) join, tooth bar (9) matches with gear (10), gear (10) is installed on the transmission shaft (11), transmission shaft (11) joins by rotating disk and mechanism rod, establish check valve on the cylinder head (15) and the speed setting hole of opening the door, establish set screw (14) on the adjustment hole, three screws are arranged on the cylinder head (15), promptly open, the speed of closing the door and the buffering set screw of opening the door.