Patent No.:CN2584760 Date:2002-10-25

Google Patent: https://patents.google.com/patent/CN2584760Y/en?oq=CN2584760

China Patent: http://epub.cnipa.gov.cn/

Abstract

The utility model discloses a simple corner door closer, which comprises a reset pull rod, a gas spring, and a shell. The simple corner door closer is characterized in that upper and lower cavities are arranged in the shell; the upper and the lower cavities are vertically and horizontally staggered perpendicularly; a corner gear is arranged in the upper cavity, and is connected with the reset pull rod; the lower cavity is provided with a rack which is engaged with the corner gear; the rack is connected with the gas spring by an expansion rod; the gas spring adopts a separate type gas spring. The outer end of the gas spring and the lower cavity of the shell of the simple corner door closer are in screw connection; the reset pull rod adopts a floating type reset pull rod. The simple corner door closer has the advantages of simple structure, long service life, low cost, and convenient installation. The utility model may use a micro gas spring to solves the problem that doors are closed at any time in winter in north, and is suitable for air conditioning rooms, toilets, and kitchens.

Description

Simple and easy corner door closer

Technical field

The utility model relates to a kind of corner door closer.

Background technology

The thrust unit formation that the door closer of known technology generally comprises pull bar, is connected with pull bar; Its pull bar thrust unit has the employing vapour-pressure type, as application number is 00239985, the applying date is on November 3rd, 2000, denomination of invention is the disclosed technology of the patent of vapour-pressure type door closer, this vapour-pressure type door closer comprises cavity, be positioned at the pull bar of cavity inner chamber, the piston sheet, two piston sheets are installed in the pull bar front end back-to-back, the cross section of piston sheet is basin shape, on two piston sheets the pore that communicates is arranged, between two piston sheets rubber ring is housed, cavity inner chamber front end has three grades of through holes, screw cooperates with screwed hole in three grades of through holes, control turnover tolerance makes door closer switch door adjustable-speed.Though above-mentioned door closer volume is little, the action of closing the door is soft, complex structure, it is many to produce failure factor, thereby application life is limited, and cost is also higher, and comparatively trouble is installed also.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure, long service life, cost simple and easy corner door closer low, easy for installation.

For achieving the above object, the utility model is to adopt following scheme to realize: this door closer comprises reset lever, air spring, housing, be provided with cavity up and down in the housing, cavity vertical interlaced in length and breadth up and down, be provided with the corner gear in the upper plenum, the corner gear is connected with reset lever, and following cavity is provided with tooth bar, tooth bar and the interlock of corner gear, tooth bar is connected by expansion link with air spring.

As the further improvement of such scheme, air spring of the present utility model adopts the separate type air spring.Adopt between cavity under its outer end and the door closer housing and be threaded.

Above-mentioned reset lever adopts floating type reset lever.

Adopt the beneficial effect of said structure to be, the utility model only is made up of power source (being air spring power), tooth bar, corner gear, housing, release link, it designs unique, have following characteristics: 1, power has partly adopted the separate type air spring, assembling and regular maintenance are flexible, therefore the design F1 of air spring power, F2 ratio are similar to 1 ≈ 1, and it is steady, soft to produce torsion, have reduced the noise when closing; Adopt floating type release link to make user installation easy when 2, closing, need not to consider strict installation site and size, a surface is damaged; Whether it can be provided with to open when door 90 is spent suspends, make the user arbitrarily determine through normal closed gate; 3, this kind door closer part accessory is few, the part localization rate of parts and components reaches 100%, life-span is long, close Men Keda 3.5 ten thousand times, lower than other door closer cost of existing use, price is low, it had both solved the problem that north of china in winter will be closed the door at any time, more be adapted to air-conditioned room, washroom, kitchen are the desirable good products that can be accepted by huge numbers of families.

Description of drawings

Be described further below in conjunction with drawings and Examples;

Fig. 1 is the utility model broken section structural representation;

Fig. 2 looks up direction broken section structural representation for Fig. 1;

Fig. 3 is Fig. 1 left view.

The specific embodiment

As Fig. 1～shown in Figure 3, door closer of the present utility model comprises floating type reset lever (1), air spring (8), housing (2); Be provided with upper plenum (6), following cavity (5) in the housing (2), cavity vertical interlaced in length and breadth up and down, be provided with corner gear (3) in the upper plenum (6), corner gear (3) is fixedlyed connected with reset lever (1), following cavity (5) is provided with tooth bar (4), tooth bar (4) and corner gear (3) interlock, tooth bar (4) is connected by expansion link (7) with separate type air spring (8).Adopt between cavity (5) under air spring (8) outer end and the door closer housing to be threaded, install more convenient; Also be provided with fixing threaded hole (9) on the housing.

Claims (4)

1. simple and easy corner door closer, comprise reset lever, air spring, housing, it is characterized in that, be provided with up and down cavity in the housing, cavity vertical interlaced in length and breadth is provided with the corner gear in the upper plenum up and down, the corner gear is connected with reset lever, following cavity is provided with tooth bar, tooth bar and the interlock of corner gear, and tooth bar is connected by expansion link with air spring.

2. simple and easy corner door closer according to claim 1 is characterized in that, described air spring adopts the separate type air spring.

3. simple and easy corner door closer according to claim 1 is characterized in that, adopts between cavity under the outer end of described air spring and the door closer housing to be threaded.

4. simple and easy corner door closer according to claim 1 is characterized in that described reset lever adopts floating type reset lever.