CN1105818C

CN1105818C - Multi-purpose door closer installed behind door

Info

Publication number: CN1105818C
Application number: CN 98119715
Authority: CN
Inventors: 赵晖
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-19
Filing date: 1998-09-19
Publication date: 2003-04-16
Anticipated expiration: 2018-09-19
Also published as: CN1248660A

Abstract

The present invention relates to a multifunctional door closer arranged at the back of a door, the position of a bottom plate can be changed, and the bottom plate can also be arranged above a door frame. The door closer is hydraulically controlled to achieve the purpose of closing the door at low speed to adapt to the need of people for going into and out of the door. When closed, the door can be locked by enough torque. When opened sufficiently for 90 degrees, the door can automatically stay and a door sucking device is replaced. Door opening and closing can be forecast, theft prevention is achieved, and the requirements for multiple functions and different installing positions are realized.

Description

Multi-purpose door closer installed behind door

The present invention relates to a kind of multi-purpose door closer installed behind door.

I have obtained the patent that the patent No. is a ZL95221156.4 multipurpose Hydraulic Adjustable Speed automatic door closer, it provides a kind of hydraulic speed regulating device that has, stop the door closer of door and warning purposes, but shortcoming is to be installed in the doorframe top, and can not be installed in the door the behind, if can change the back that also can be installed in door into, will be more flexible and attractive in appearance.In addition, also have the problems of technical scheme aspect, cause Hydraulic Adjustable Speed malfunctioning as leakage of oil; The ferrule configuration mistake causes structure not compact; The tube-in-tube structure manufacturability is poor, is not suitable for producing in enormous quantities; Scissors shape " tiger mouth " is arranged during installation, do not note slightly, the finger----or the like of hurting sb.'s feelings all will go to overcome by new technical scheme.

The present invention seeks to: provide a kind of installing type behind the door to have hydraulic speed regulating device, can close door automatically and can stop the alternative door-inhale of door, again can the multiduty door closer of alarming anti-theft.And to overcome the patent No. be the existing many mistakes of ZL95221156.4 multipurpose Hydraulic Adjustable Speed automatic door closer technical scheme.

The present invention seeks to realize: in the multipurpose Hydraulic Adjustable Speed automatic door closer that has used,, install to adapt to behind the door with the contraction in length of bearing in order to following method; To change hinged can the rotation into the affixed seat structure of rivet, reach rotation to adapt on doorframe and the installation of two kinds of diverse locations behind the door.Newly design by oil circuit, it is malfunctioning to overcome speed governing; Change by new configuration of sleeve and runner movement principle, make compact conformation; By the processing of sleeve new design removing from screw thread, reduce cost, be fit to produce in enormous quantities; Hinged by bearing, rotatable during installation, avoid injury.Structure is the basis and the prerequisite of function, has produced new function by a series of structural changes.

Example in detail structure below in conjunction with accompanying drawing 1.

As shown in Figure 1, the compressed spring type door closer is made up of fork (1), check valve film (4), piston rod (7), stage clip (8), sleeve (9), microswitch (13), slide block (20).Wherein, fork (1) is hinged by the same bearing of semiaxis (11) (10), and is provided with pin (21), borrows the same slide block of chute (22) (20) to slide and joins.Sleeve (9) is hinged with axle (15) same bearing (10) by piston rod (7), axle bed (17).Stage clip (8) is installed in the sleeve (9), and by the piston rod that passes sleeve (9) (7) tension precompressed.Sleeve (9) is connected on the fork (1) by preceding bearing (3) and nut (2) again.

When door is opened, fork as shown in Figure 1 (1), sleeve (9) and slide block (20), respectively around its center of rotation rotation, the center of rotation of sleeve this moment (9), be bearing pin (15), distance between the preceding bearing (3) of same sleeve (9) becomes greatly gradually, and stage clip (8) is promptly by progressive compression and savings energy.Simultaneously, the fluid in sleeve (9) flows to left chamber (26) by one way valve (23), check valve film (4) and micropore (19) on the piston (24) from right chamber (25).

As shown in Figure 1, retracting spring, when promptly closing, in order to reduce a speed of closing, fluid can only pass through micropore (19) at leisure from left chamber (26), flow to right chamber (25), because two one way valves (23) and check valve film (4) are all closed this moment.Two roads seal, and can overcome the seepage of ZL95221156.4, cause hydraulic speed-changing malfunctioning.Joint ring (6) on piston (24), when moving to decompression elongated slot (5) lentamente in sleeve (9), the fluid suddenly-applied short circuit is so drive fork (1) rapid movement at effect lower piston rod (7) rapid movement of spring (8), reaching has enough moment, and door lock is locked.Described is the operating principle of Hydraulic Adjustable Speed, and stop the door principle be: when fork (1) around semiaxis (11) to inner rotary, when angle above 90 °, crossed after the extended line MN of bearing pin (15) and the line of centres of semiaxis (11), fork (1) promptly is lockable, because spring force can't make fork (1) restore, realized stopping door.

As shown in Figure 1, on axle bed (17), spring leaf (12) is housed,, promotes microswitch (13), connect circuit, can reach alarming anti-theft in order in swing process.

As shown in Figure 1, bearing (10) is hinged with base plate (18), with screw (14) location.When door closer was installed in behind the door, the relative position of bearing (10) and base plate (18) was in the diagram solid line position, and when the door closer change was installed in the top of doorframe, bearing (10) and base plate (18) relative position were in the dotted line position of diagram (16).At this moment, base plate (18) has turned over 90 °, and need take screw (14) apart, turn over 90 ° after, be screwed into again.Rotatable during because of installation, can not form, as the scissors shape shown in the drawings " tiger mouth " of ZL95221156.4 multipurpose Hydraulic Adjustable Speed automatic door closer, improve safety.

This structure has, and by adjusting nut (2), the length that changes stage clip 8 is regulated the benefit of closing a speed and closing a moment.

Accompanying drawing 2 is installing type behind the door, and accompanying drawing 3 is a doorframe top installing type.Identical in structure goods, when being installed in behind the door, the tool open angle is big, and it is big to stop an angle, and the also big advantage of angle of door is closed in beginning automatically.Actual measurement shows, opens the door to reach 110 ° and still can open the door automatically, reaches 118 ° and can reliably stop door, and this is mounted behind the door benefit.

The sleeve of ZL95221156.4 multipurpose Hydraulic Adjustable Speed automatic door closer and end cap are to be threaded, and piston seals with round section joint ring, all can cause the hydraulic leakage speed change malfunctioning, and tube wall wants thick waste of material big, are not suitable for producing in enormous quantities, and processability of product structure is poor; Sleeve mounting technique scheme is unreasonable, takies inner large space, causes external form big; Very long chute is arranged on the fork, also cause external form big, and do not note slightly when installing, can cut off finger or the like, have only thorough variation, just can overcome its shortcoming, and produce new function, give and use and installation brings many convenience, beautify life by the innovation structure.

The accompanying drawing of specification digest please be selected accompanying drawing 1 for use.

Claims

1, a kind of multi-purpose door closer installed behind door can Hydraulic Adjustable Speed, stop door, warning has bearing, fork, sleeve, piston rod, spring, slide block, microswitch, it is characterized in that: the same bearing of fork (1) (10) is hinged, bearing (10) is hinged with base plate (18) again, described spring is stage clip (8), be sleeved in the hinged sleeve (9) of same bearing (10), and the piston rod (7) that passes sleeve (9) makes the stage clip precompressed, the joint ring (6) that piston is arranged on this piston, one way valve (23), check valve film (4), micropore (19) has decompression elongated slot (5) on the sleeve (9).

2, according to the hinged feature of described multi-purpose door closer installed behind door bearing of claim (1) (10) and base plate (18) be: when being installed in behind the door, consider the thickness of doorframe, base plate (18) should be in narrow dimension and overlap with doorframe; When being installed in the doorframe top, because of the thickness of doorframe, narrow dimension overlaps with doorframe, thereby base plate (18) should turn over 90 ° equally.

3, will be according to the feature of the described multi-purpose door closer installed behind door slide block of claim (1) (20): chute moves in the pin (21) of fork (1), is installed on the door, drives the motion of door.

4, according to the described multi-purpose door closer installed behind door fork of claim (1) (1) feature be: with semiaxis (11) is the center rotation, and drive sleeve (9) is the center rotation with bearing pin (15), after turning over 90 °, because the center line of sleeve has been crossed semiaxis (11) and self-locking occurred, for stop with.

5, according to the described multi-purpose door closer installed behind door of claim (1), the feature of microswitch is: spring leaf (12) is installed on the bearing (17) of piston rod (7), swing with fork (1), promote microswitch (13), connect power supply, play the warning effect, dismountable when not needing to report to the police.