CN2203994Y - Device for automatic shutting door - Google Patents

Abstract

The utility model relates to a regulator of a wing fan, particularly an automatic door closer, comprising a fixed bracket and a moving bracket which are connected by a motion cylinder. The motion cylinder is one root of hollow tube with a bottom, an adjusting threaded hole is arranged on a cylinder body adjacent to the bottom, and an adjusting screw is arranged in the adjusting threaded hole. One end of a motion rod is fixedly connected with a piston in the motion cylinder, and the other end of the motion rod is a cambered axle on which a strip of torsion spring whose support feet are fixed with the cambered axle is sheathed on the cambered axle. The structure of the utility model is simple, partial major parts can be made of plastics, so the cost is low, first quickness and rear slowness of the actions of door automatic closing can be implemented, and door closing actions are skillful. The utility model is suitable for house doors of living rooms, offices, etc. The house doors which are provided with rabbets are opened toward one direction.

Description

Device for automatic shutting door

The utility model relates to a kind of adjuster of wing, specifically, is a kind of door check.

Existing power accumulating door engine has: automatically hinge, spring hinge, butterfly hinge, door catapult, floor spring, six kinds of products of door top spring, and wherein self-shutting hinge is to utilize the weight place of axle sleeve and inclined-plane door self to finish the power of holding and close the door automatically; Spring hinge, butterfly hinge, door catapult, floor spring, a door top spring then utilize spring to hold power and directly discharge the power of holding and finish automatically and close the door, above-mentioned four kinds of devices speed of closing the door is all uncontrollable, can produce impact sound when on the door of seam is arranged, using, it is big more that door is opened, because the effect of inertia and acceleration, door and doorframe in that to close fashionable impact sound just big more, so be used for not having frequent gate, the screen door of switch of seam, half door etc. more.Floor spring also holds power with spring and discharges to finish and close the door automatically but close the door adjustable-speed, because it is to be loaded on underground application apparatus, the gate that is used for the building or the hall more, door top spring also holds power with spring and discharges to finish automatically and close the door, because its inside is provided with the buffering oil pump, so the responsiveness of closing the door is adjustable, being suitable for being contained in the door of opening towards a direction upward uses, but because its complex structure, so the cost height is more than the gate of the building and the hall.

The purpose of this utility model will provide a kind of exactly can realize closing the door action first quick and back slow, and adjustable-speed, simple in structure, door check that cost is low.

For achieving the above object, the utility model comprises and is installed in the fixed rack on the doorframe and is contained in moving support on the body, adopt ACTUATOR to connect between them, it is characterized in that: ACTUATOR is a hollow tube that the end is arranged, and end cap is contained in its openend, and the other end is provided with an adjusting screw near the stack shell of bottom, set screw is mounted in it, piston Joint in one end of actuating strut and the ACTUATOR, the other end is a cambered axle, torsion spring that leg fixes with it of cover on the cambered axle.

Groove on the above-mentioned piston is equipped with rubber grommet, has done air intake duct on the groove forward position of piston; Above-mentioned piston also can be rubber cup, and another of above-mentioned torsion spring leg can be buckled on moving support or the fixed rack.

The utility model compared with prior art, its advantage is: structure is comparatively simple, because utilizing vapour lock to stagnate is used for finishing the work, the part major part can be manufactured with plastics, so cost is low, and the action of closing the door automatically can realize that first quick and back slow the action of closing the door is dexterous, be very suitable for using on the doors such as office towards direction room that open, that seam is arranged.

Accompanying drawing is the utility model structural representation.

The utility model is described in further detail below in conjunction with accompanying drawing: as shown in the figure, it comprises the fixed rack (20) that is contained on the doorframe crossbeam and is contained in moving support (12) on the body, adopt ACTUATOR (15) to connect between them, moving support (12) be provided with install and fix with screw hole (13) with two with the rectangular parallel winglet of main body (11), the axis hole that a support part bar (6) cambered axle (8) is respectively arranged on two winglets (11), cambered axle (8) is contained on this axis hole, also be with torsion spring (10) and adjustable ring (14) on the cambered axle (8), a leg of torsion spring (10) is buckled on the moving support (12), another leg is buckled on the adjustable ring (14), and adjustable ring (14) is fixed on the cambered axle (8) with screw (9); Actuating strut (6) one ends are cambered axle (8), the other end passes end cap (7) and interior piston (17) Joint of ACTUATOR (15), groove (16) on the piston (17) is equipped with rubber grommet (18), has done air intake duct (5) on groove (16) forward position of piston (17); ACTUATOR (15) is a hollow tube that the end is arranged, and end cap (7) is contained in its openend, and other end bottom is provided with supports earrings (21), is being provided with an adjusting screw (4) on the stack shell of bottom, and set screw (3) is mounted in it; Fixed rack (20) is one two trunnion base, and seat is provided with fixing threaded hole (1), and the support earrings (21) of ACTUATOR (15) is inserted between the diaxon ear (2) of fixed rack (20), and bearing pin (19) therefrom passes.

When the utility model uses fixed rack (20) is screwed on the doorframe crossbeam in door leaf, the permanent position is with the center line of the door hinge center line parallel distance to fixed rack (20) upper pin (19), be equal to or greater than piston (17) effective half of active length in ACTUATOR (15), be advisable less than effective active length of piston (17) in ACTUATOR (15), after fixing fixed rack (20), under door leaf is closed condition, piston (17) is pushed into ACTUATOR (15) bottom, moving support (12) falls within the position on the door leaf, it is exactly the permanent position of moving support (12), this door check that installs and fixes is work like this: when door leaf is opened, it is the center rotation together with the door hinge that the door leaf band support (12), torsion spring (10) holds power at the same time, because the center line of the bearing pin (19) on the fixed rack (20) has one section parallel distance from the center line of door hinge axle, so in the opening process of door leaf, the rotation of support (12) along with the door leaf band, moving support (12) is also just being followed with the distance of fixed rack (20) and is being strengthened, the increasing of this distance, make actuating strut (6) and ACTUATOR (15) when following rotation, actuating strut (6) does to extract out action to piston (17) in ACTUATOR (15), the extraction of piston (17) makes rubber ring (18) by the forward position to pistion recess (16), air is able to by the air intake duct (5) on pistion recess (16) forward position, enters piston (17) owing to do the space that the extraction motion is available.After removing opening force, torsion spring (10) discharges the power of holding, force door leaf to circle round to closed condition, in this closing movement process, moving support (12) dwindles with the distance of fixed rack (20), so actuating strut (6) pushes back piston (17), the motion that pushes back of piston (17) makes rubber ring (18) by the back edge to pistion recess (16), air intake duct (5) is ineffective, the result who continues to push back piston (17) makes the air that enters ACTUATOR (15) bottom be compressive state, air result by compression produces one and piston (17) pushes back the power that contends with herein, so circling round of door leaf is obstructed, regulate set screw (3) and control releasing of air herein, can control the closing velocity of door leaf at this moment, owing to can make pre-large post-small certain tapering to the interior sky of ACTUATOR (15), or on the stack shell appropriate location, do some bleeder ports, so, the phenomenon that piston (17) is obstructed can not appear in the leading portion that moves of closing the door, the elder generation of action is achieved soon so close the door automatically, and the back speed of releasing of controlling air slowly by set screw (3) of the action of closing the door, also be achieved, these actions link up, and promptly are to have realized close the door the automatically action of action dexterity first quick and back slow.

Piston in the utility model (17) also can adopt as the rubber cup in the inflator; Another leg of torsion spring (10) also can be and is buckled on the fixed rack (20), at this moment only need the utility model oppositely to install, moving support (12) as shown in drawings is installed on the doorframe as fixed rack, and fixed rack (20) is installed in a body and gets final product as a moving support.

Claims (5)

1, a kind of door check, it comprises and is installed in the fixed rack on the doorframe and is contained in moving support on the body, adopt ACTUATOR to connect between them, it is characterized in that: ACTUATOR (15) is a hollow tube that the end is arranged, end cap (7) is contained in its openend, the other end is provided with an adjusting screw (4) near the stack shell of bottom, set screw (3) is mounted in it, piston (17) Joint in one end of actuating strut (6) and the ACTUATOR (15), the other end is cambered axle (8), and cambered axle (8) is gone up torsion spring (10) that leg fixes with it of cover.

2, door check according to claim 1 is characterized in that: the groove (16) on the piston (17) is equipped with rubber grommet (18), has done air intake duct (5) on groove (16) forward position of piston (17).

3, door check according to claim 1 is characterized in that: piston (17) is a rubber cup.

4, according to claim 1 or 2 or 3 described door checks, it is characterized in that: another leg of torsion spring (10) is buckled on the moving support (12).

5, according to claim 1 or 2 or 3 described door checks, it is characterized in that: another leg of torsion spring (10) is buckled on the fixed rack (20).