CN2277447Y - Controller for closing door - Google Patents

Abstract

The utility model discloses a controller for closing a door. The controller for closing a door makes an opened door close automatically at constant speed to avoid the damage of the glass, wherein the damage is caused by knocking a door frame by a door; the opened door can be stopped at the largest angle. The controller for closing a door is composed of square plates respectively fixed on a door frame and a door, a movable support, a cylinder body, a piston rod, a piston, a compression spring, a speed regulating valve and a self-locking location mechanism. The controller for closing a door has the advantages of simple structure and reliable function. The utility model can be widely used in various doors of one way flat opening.

Description

Close door controller

The utility model relates to a kind of pass door controller.

Avoid too quickly knocking door case when closing after door is opened, send the influence of noise study and work, close the door too quickly when especially preventing wind and break glass on the door, can make simultaneously after the unlatching can lock-bit, provide several passes door controller on the existing market, they mostly adopt the cylinder rod-pulling type, its compactness relatively simple for structure, action is accurate, but its locking mechanism is undesirable.A kind of locking mechanism is that a tapered sleeve is fixed in the piston rod front portion, and the cylinder block rear end cap is provided with corresponding hole, and when opening door, when piston rod was pulled out to extreme position, tapered sleeve hand-hole and being stuck made its door locked.This mechanism though the location is reliable, will have greater impact power could remove self-locking because self-lock force is very big at closing time, thus the application life of influence door and hinge.A kind of locking mechanism is that a thin iron bent plate is housed on the piston rod outside cylinder block, manually it after moving to the appropriate location, piston rod is decontroled door again after opening the door, generation was crooked after the bent plate ledge was run into cylinder block in the piston rod retraction process, bent plate can not bounce back stuck piston, thereby door lock is lived.Though this structure is simpler, and door can be stopped everywhere, use trouble, and inconvenient child and sawed-off people use.

The purpose of this utility model is to provide a kind of improved pass door controller, and it removes and can make door when closing, and door leaf moves to outside door closes lentamente, and its locking mechanism is simple in structure, easy to use and reliable simultaneously, and uses less power can remove self-locking.

The purpose of this utility model is achieved in that

This pass door controller, by outer sleeve 10 be installed in big stifled 5 and little stifled 14 of two ends and form cylinder block, the square plate 1 that is fixed on the doorframe is connected with cylinder block by back shaft 2, the travel(l)ing rest 16 that is fixed on the door is hinged with piston rod 11, outer sleeve 10 built-in springs 8, jump ring 12 is contained in the jump ring holder 13, they are in the right-hand member of outer sleeve 10, on outer sleeve 10 and big stifled 5, flow speed control valve 6 is housed, be characterized in, the latch segment 9 that two ends are cone is equipped with in the front portion of piston rod 11, and the front end of piston rod 11 is equipped with piston 7, and piston 7 has ring-shaped groove, " O " type circle is housed in the groove, the groove left side of piston 7 is vertical planes, and the right is the conical surface, is drilled with through hole A on the vertical plane.

The utility model is owing to be provided with the latch segment that two ends are cone on piston rod, when door is opened to certain angle, be located at the jump ring in the jump ring holder of cylinder block rear end, block latch segment, just produce lock-bit, as long as with less impact force, can remove self-locking, simple in structure, reliable effect, again because latch segment is to roll the envelope method with cutter to be fixed on the piston rod, processing is simple, makes its low cost of manufacture, simultaneously because piston portion of the present utility model has only piston and two compositions of O type circle, both guaranteed to make at closing time it slowly to go, structure is very simple again.

Concrete structure of the present utility model is provided by the following examples and accompanying drawing thereof.

Fig. 1 is the sectional view according to the pass door controller that the utility model proposes.

Describe details and working condition in detail below in conjunction with Fig. 1 according to the pass door controller that the utility model proposes.

The utility model is by outer sleeve 10 and be installed in big stifled 5 and little stifled 14 of its two ends and form the cylinder block that can swing, moves to the middle part of outer sleeve 10 for stoping big stifled 5 and little stifled 14, blocks up groove of each roll extrusion of inboard of 5,14 by size at outer tube 10.The square plate 1 that is fixed on the doorframe is hinged with cylinder block by the back shaft 2 and the steady pin 3 that are fixed together with it.The travel(l)ing rest 16 that is fixed on the door is hinged by turning cylinder 15 and piston rod 11.The front end riveted joint upper piston 7 of piston rod 11, piston 7 has ring-shaped groove, and the left side of groove is a vertical plane, and the right is the conical surface, is drilled with two through hole A on the vertical plane, and O type circle 4 is housed in the groove.The front portion of piston rod 11 is rolled with cutter and is sealed up the latch segment 9 that two ends are cone.The right-hand member of outer sleeve 10 leans against little stifled 14 places jump ring holder 13 is housed, and jump ring 12 is contained in the jump ring holder 13, on outer sleeve 10 and big stifled 5 flow speed control valve 6 is housed.Spring 8 places in the outer sleeve 10, and is enclosed within on the piston rod 11, and an end withstands on the piston 7, and an end withstands in the jump ring holder 13.The two ends flanging of outer sleeve 10 is used for sealing size stifled 5,14.

When using the utility model to close door controller, utilize square plate 1 to be fixed on the doorframe, travel(l)ing rest 16 is fixed on the door leaf.When door is opened, door drives cylinder block and rotates, driving piston rod 11 axially moves, O type circle 4 on the piston 7 leans against on the vertical plane of piston 7, air enters the piston left side by through hole A on the piston 7, when door was opened to certain angle, latch segment 9 was blocked by the jump ring 12 of cylinder block right-hand member on the piston rod 11, produced lock-bit.When at closing time, as long as in addition less impact force, jump ring 12 promptly leaves the conical surface of latch segment 9, removes self-locking.Piston 7 is moved to the left under the elastic force effect of spring 8 at this moment, and the conical surface on right side is close on the inwall of outer sleeve 11 the O type circle 4 in its groove on the piston 7, air can only slowly be discharged from left side flow speed control valve 6, produce damping action, door is shut under the effect of spring 8 slowly.Outer sleeve 10 left part B places are provided with axial groove, and the air in piston 7 left sides can enter piston 7 right sides thus, and the damping action of air reduces, and produce the acceleration of moment when door is closed, and satisfy the door lock requirement.

The utility model closes door controller and can be used on the various flat doors of opening.

Claims (1)

1, a kind of pass door controller, form cylinder block by outer sleeve (10) and big stifled (5) and little stifled (14) that are installed in two ends, the square plate (1) that is fixed on the doorframe is connected with cylinder block by back shaft (2), the travel(l)ing rest (16) that is fixed on the door is hinged with piston rod (11), outer sleeve (10) built-in spring (8), jump ring (12) is contained in the jump ring holder (13), they are in the right-hand member of outer sleeve (10), on outer sleeve (10) and big stifled (5), flow speed control valve (6) is housed, it is characterized in that: the latch segment that two ends are cone (9) is equipped with in the front portion of piston rod (11), the front end of piston rod (11) is equipped with piston (7), piston (7) is provided with ring-shaped groove, and " O " type circle is housed in the groove, and the groove left side of piston (7) is a vertical plane, the right is the conical surface, is drilled with through hole A on the vertical plane.