CN2272478Y

CN2272478Y - Double-force automatic door closing device

Info

Publication number: CN2272478Y
Application number: CN 96232871
Authority: CN
Inventors: 陈仕熙
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-22
Filing date: 1996-03-22
Publication date: 1998-01-14
Anticipated expiration: 2006-03-22

Abstract

The utility model is composed of a support 19, a small connecting rod 20 and a big connecting rod 21, and is characterized in that a big spring 3 is arranged in a hole of a left casing 2; the right end of the spring 3 is sheathed with a small spring 4; the right end of the small spring 4 is provided with a clutch mechanism which is composed of a moving ring 5, a ball 6 and a fixing ring 7; an inner hole of the left end of the left casing 2 is screwed with an adjusting bolt 1; a rack bar 8 is arranged in a hole of a middle casing 10, and the rack bar 8 is meshed with a gear 9; a one-way valve damper mechanism is composed of oil 14, a steel ball 15, a piston 16, a one-way valve spring 17 and a baffle plate 18 which are sealed in a hole of a right casing 13. The utility model has the advantages of easy door opening, slow door closing, no impact sound, simple structure, easy manufacture, no oil leakage phenomenon, etc. The utility model is suitable for the places of opening a door in a one-way mode.

Description

Two power door checks

The utility model is that a kind of door leaf that makes can reach certain position, and can close, prevent two power door checks of knocking door case automatically.

In life now, ask for help when inlet/outlet, door can be closed automatically, invade to prevent dust or noise, the perhaps requirement of certain humiture in the holding chamber, had the door check device in the prior art, as the patent disclosure of application number 93237643.6 a kind of " door check " transmission mechanism driven plunger effect damper is arranged, have many retaining speed regulation functions.But adopt the power of a spring door to be shut and locked door, just need the pre set force of spring enough big, must close the door at a slow speed at closing time in addition, just must add damper, the power that this power of closing the door will overcome damper is closed the door at a slow speed, and this adds the pre set force of big spring again, and this just causes when opening the door, the used thrust of people will greatly just can be opened the door, and allows the people feel to require great effort very much; The tooth axle of transmission mechanism communicates with oil circuit, and the sealing of turning cylinder is easily gone wrong, can leakage of oil.

The purpose of this utility model is to overcome the prior art above shortcomings, and provides a kind of people just can door be reached 90 ° like a cork when pushing, and lets go closing the door automatically at the back door at a slow speed, and will lock and automatically lock, and there is no impact noise.

Above-mentioned purpose of the present utility model is to realize by such structure, form by supporting 19, small rod 20, big connecting rod 21, door 22, it is characterized in that in left shell 2 holes big spring 3 being housed, spring 3 right-hand members are with little spring 4, little spring 4 right-hand members are equipped with rotating ring 5, ball 6, encircle 7 surely forms clutch mechanisms, right shell body 2 left end inner hole threads connect regulates bolt 1, can regulate big spring 3; Middle shell is equipped with tooth bar 8 in 10 holes, and meshes with gear 9; Be sealed with oil 14, steel ball 15, piston 16, one-way valve spring 17, the shelves utmost point 18 composition one way valve damper mechanisms in right shell body 13 holes.

The novel operating principle of this reality is as follows: when people push 22 the time, make small rod 20 and big connecting rod 21 motions, effect down, make and be contained in 9 transmissions of door closer middle shell 10 gears, order about tooth bar 8 and be moved to the left, make little spring 4 storage power, push 5 °-10 ° the time, this moment, door left tapered end, the power that little spring 4 is stored up was continued to push 22 o'clock by clutch locks again, big spring 3 storage power, reach 90 ° up to Jiang Men, be moved to the left simultaneously at tooth bar 8 this moment, and the piston 16 that drives damping mechanism opens one way valve steel ball 15 to left movement, make oil 14 enter right oil cylinder, perform damping preparation.When people no longer push 22, hand to be decontroled, door 22 is under the power effect that big spring 3 discharges out, tooth bar 8 is moved right, and driven gear 9 force big connecting rod 21 and small rod 20 motions, door 22 is shut, and when door 22 closed 5-10 °, clutch unclamped little spring 4 stored power is discharged out, door 22 is locked rapidly, meanwhile, when tooth bar 8 moves right, with closed check valve, under the effect of spill port, piston 16 is moved right at a slow speed on the piston 16, play 22 drag effect of closing the door.

The utility model said structure can further specify by accompanying drawing.

Fig. 1 is the utility model structure sectional view.

Among the figure: 1-regulates the moving bad 6-ball 7-of bolt 2-left shell 3-big spring 4-little spring 5-and encircles 8-tooth bar 9-gear 10-middle shell 11-lamp housing 12-sealing ring 13-right shell body 14-oil 15-steel ball 16-piston 17-one-way valve spring 18-baffle plate 19-supporting 20-small rod 21-big connecting rod 22-door surely

Be connected with gear 9 at big connecting rod 21 1 ends, the other end links mutually with small rod 20, small rod 20 other ends and supporting 19 hinge joints, and supporting 19 is fixed on the doorframe, forms door closer by left shell 2, middle shell 10, right shell body 13 and is fixed on middle part, door 22 tops.

For the ease of room lighting, effectively utilize the door closer remaining space, the garden some is provided with lamp housing outside middle shell 10.

The utility model is the following advantage of tool compared with prior art:

1. adopt two springs, damper structure, so that easily open the door, slowly close Door, no impact noise;

2. simple in structure, easy manufacturing, no oil leakage phenomenon.

The utility model is applicable to hotel, office, desinfection chamber etc., requires conveniently The place of the unidirectional door capable of being opened of closing the door.

Claims

1. two power door check, form by supporting 19, small rod 20, big connecting rod 21, it is characterized in that in left shell 2 holes big spring 3 being housed, spring 3 right-hand members are with little spring 4, little spring 4 right-hand members are equipped with rotating ring 5, ball 6, encircle 7 composition gear clutch mechanisms surely, and left shell 2 left end inner hole threads connect regulates bolt 1; Middle shell is equipped with tooth bar 8 in 10 holes, and meshes with gear 9; Be sealed with oil 14, steel ball 15, piston 16, one-way valve spring 17, plate washer 18 composition one way valve damper mechanisms in right shell body 13 holes.

2. according to claim 1 pair of power door check is characterized in that big connecting rod 21 1 ends are connected with gear 9, and the other end links mutually with small rod 20, small rod 20 other ends and supporting 19 hinge joints.

3. according to claim 1 pair of power door check is characterized in that middle shell 10 outer garden somes are provided with lamp housing 11.