CN2223345Y - Special blind hinge for heavy door - Google Patents

Abstract

The utility model relates to a special blind hinge for heavy doors, which comprises an upper hinge and a lower hinge, and both hinges are composed of a steel movable support frame, a fixed support frame, a rotation shaft, a bearing and an outer side cover, wherein the rotation shaft and the bearing are arranged at the back parts of the sides of the two support frames and mounted in vertical type. The steel movable support frame and the fixed support frame are respectively arranged on a door edge frame and an upper end and a lower end of a door frame. The two support frames are connected into integration by the rotation shaft, and both the lower side support frames are fastened together with the rotation shaft. A sliding shaft sleeve and an integral one-way thrust radial ball bearing are respectively inserted between the fixed support frame of the upper hinge and the movable support frame of the lower hinge. The utility model has the advantages that the simple structure and firm, the rotation is handy and flexible, and the door is tightly closed without the phenomenon of straining.

Description

The extraordinary blind hinge of heavy door

The utility model relates to a kind of hinge or hinge that is used for the special construction of door, exactly, relates to a kind of extraordinary blind hinge that is used for heavy door.

The hinge of selling on the market all is to use screw to be installed on the frame of various doors, reveal face now.Because in opening and closing the door and window process, the power of slide door or window all be with its on hold-down screw move back that to pull out direction be consistent, so, when service time is long or heavier when the weight of door, heavy, be easy to make screw because of long-term stressed takes place to overflow buckle, loosening phenomenon, cause wholely fanning a generation and dropping, make and open the door, at closing time, door rubs mutually with ground, has both damaged building facilities, increases the difficulty of switch door again; If tenesmus is serious, even make badge extremely can't carry out switch.In order to solve this difficult problem, the door that present a lot of weight is bigger has not re-used above-mentioned hinge, but in the close rotating shaft of holding the place, limit that a projection is installed respectively of the upper and lower side frame of door, the axis of two rotating shafts is positioned on the same plumb line up and down, can this rotating shaft be the axle center just, make a rotation produce the action of switch door.But this hinge type rotating shaft makes door after shutting, and it still has quite wide slit between doorframe, and flue gas can be worn door and mistake thus, can not play the interior space behavior of closed chamber of door.Warmth retention property is poor, and can not be used for labeled door; Because many labeled doors all belong to the heavy door category.

The purpose of this utility model provides a kind of extraordinary blind hinge that is used for heavy door, and the door that uses this hinge to install can effectively overcome the tenesmus phenomenon, and the pass is tight behind the door seamless, can stop effectively that the flue gas intrusion is indoor, and warming thermal insulation is effective.

The utility model is such: include hinge and lower jaw two parts, it is characterized in that: above-mentioned two kinds of hinges are made of the cover cap that is installed in doorjamb and travel(l)ing rest, the fixed support on doorframe upper and lower side limit, the rotating shaft that is positioned at two stands proceeds posterolateral and vertical installation, bearing and the outside thereof respectively, wherein the travel(l)ing rest of steel and fixed support be all that cuboid and one proceeds posterolateral are extended, constituted by laying the Cylinder that rotating shaft and bearing be provided with through hole, and nationality is joined together two stands by this rotating shaft; Support and rotating shaft that two hinges all are its downsides are tightened to one, between the fixed support of last hinge upside and the rotating shaft sliding shaft sleeve is housed, and a monolithic unilateral thrust radial ball bearing is housed between the travel(l)ing rest of lower jaw upside and the rotating shaft.The cuboid of the travel(l)ing rest of above-mentioned two hinges part all be provided with several be used to install sunk screw, to install the through hole of one with doorjamb.The fixing of the support bracket fastened cuboid of above-mentioned two hinges and doorframe can be welded construction, also can be bolt fastening structure.Above-mentioned cover cap can be selected the stainless sheet steel material for use, also can select the plating light sheet for use, and available screw or rivet are fastened on the cuboid.

Characteristics of the present utility model are: simple and reasonable, sturdy and durable, be specially adapted to installing and using of heavy door and labeled door.This hinge can make door close tightly, does not have wide seam, can effectively stop flue gas " wear door and crosses ", be incubated and fireproof performance good; And be provided with sliding shaft sleeve and angular contact ball bearing, rotate flexibly, the switch heavy door is felt very much freely light, and permanent use can not produce tenesmus phenomenon, long service life.In addition, other number of packages amount of this hinge is few, and simple shape be convenient to make and assembling, and interchangeability is good; Good looking appearance belongs to dark formula and installs, and back this hinge of switch door is installed is hiddenly not expose, and is specially adapted to various heavy doors, the labeled door of public buildings such as hotel, restaurant.

Introduce the utility model below in conjunction with accompanying drawing

Fig. 1 is a lower jaw outward appearance vertical view of the present utility model.

Fig. 2 is a lower jaw structural representation of the present utility model.

Fig. 3 is the hinge structure schematic diagram of going up of the present utility model.

Fig. 4 is the structural representation of angular contact ball bearing of the present utility model.

Referring to Fig. 1, Fig. 2, Fig. 3, the utility model is made up of last hinge (referring to Fig. 3) and lower jaw (referring to Fig. 2) two parts, above-mentioned two kinds of hinges all are by the travel(l)ing rest 2 that is installed in doorjamb and doorframe upper and lower side limit respectively, fixed support 5, be positioned at the rotating shaft 3 of two stands proceeds posterolateral and vertical installation, axle sleeve 6, the cover cap 1 in the bearing 4 and the outside thereof is formed, wherein the travel(l)ing rest 2 of steel constitutes with the cylinder that fixed support 5 is all cuboid and its left side or the extension of rear, right side, cylinder central authorities are provided with lays rotating shaft 3 and bearing 4,6 through hole 21, and nationality by rotating shaft 3 with two stands 2,5 join together.Two hinges all are its downsides support and rotating shaft 3 are tightened to one up and down, promptly going up the travel(l)ing rest 2 that is positioned at downside in the hinge is fastened by dog screw 7 and rotating shaft 3, its top is fixed support 5 (referring to Fig. 3), and the fixed support 5 that following loose-leaf is positioned at downside then also is tightened to one (Fig. 2 does not show) by screw with rotating shaft.And be embedded with sliding shaft sleeve 6 between the fixed support 5 of last hinge upside and the rotating shaft 3, be embedded with a monolithic unilateral thrust radial ball bearing 4 between the travel(l)ing rest 2 of lower jaw upside and the rotating shaft 3.This annular contact thrust ball bearing 4 is a monolithic construction, is that the utility model is created, rather than the common Internal and external cycle split type structure that can separate.Its structure can be referring to shown in Figure 4, and its external diameter Φ 1 is between 22～24 millimeters, and internal diameter Φ 2 is between 10～14 millimeters, and steel ball size is between 3～4 millimeters of Φ, and the gap of Internal and external cycle should be less than 0.1 millimeter.Because upper and lower hinge of the present utility model adopts vertical shaft and sliding shaft sleeve, angular contact ball bearing as hinged rotating mechanism respectively, so can make the switch heavy door also very freely light, and because of the strength of sliding door and the screw orientation of Fixed hinge are orthogonal relation, can be owing to the phenomenon that drops take place long-term the use.The cuboid of the travel(l)ing rest 2 of upper and lower two hinges partly is provided with several through holes 22, is used to install countersunk head screw, so that the upper and lower side limit of this hinge and doorjamb is tightened to one.The fixing screw structure that both can adopt above-mentioned travel(l)ing rest formula of the cuboid of the fixed support 5 of above-mentioned two hinges and doorframe also can adopt welded construction.The outside cladding of last lower jaw has cover cap 1, and this cover cap 1 can be selected the stainless sheet steel material for use, and is also optional with the making of plating light sheet, and with screw or rivet it is fastened on the support, to increase aesthetic appearance of the present utility model.By Fig. 2, Fig. 3 as seen, the utility model is the upper and lower side limit that hinge is installed in door, rather than install traditional side; And the rotating shaft of this hinge is positioned at the inboard of door, rather than the frame central authorities of traditional door.This dark formula is installed, and appearance looks elegant not only is from can't see the hinge that install both sides outdoors.And and can make door close tightly, do not stay the slit, really realize all multi-functional of doors such as sound insulation, insulation, fire prevention.

In a word, the utility model simple and ingenious structure, external form novel and beautiful are that a kind of having much applied, and prospect is specially adapted to the dark formula hinge of load-bearing of heavy door or labeled door.

Claims (5)

1. the extraordinary blind hinge of a heavy door, include hinge and lower jaw two parts, it is characterized in that: above-mentioned two kinds of hinges are made of the cover cap that is installed in doorjamb and travel(l)ing rest, the fixed support on doorframe upper and lower side limit, the rotating shaft that is positioned at two stands proceeds posterolateral and vertical installation, bearing and the outside thereof respectively, wherein the travel(l)ing rest of steel and fixed support be all that cuboid and one proceeds posterolateral are extended, constituted by laying the Cylinder that rotating shaft and bearing be provided with through hole, and nationality is joined together two stands by this rotating shaft; Support and rotating shaft that two hinges all are its downsides are tightened to one, between the fixed support of last hinge upside and the rotating shaft sliding shaft sleeve is housed, and a monolithic unilateral thrust radial ball bearing is housed between the travel(l)ing rest of lower jaw upside and the rotating shaft.

2. the extraordinary blind hinge of heavy door as claimed in claim 1 is characterized in that: the cuboid part of the travel(l)ing rest of above-mentioned two hinges all be provided with several be used to install sunk screw, to install the through hole of one with doorjamb.

3. the extraordinary blind hinge of heavy door as claimed in claim 1 is characterized in that: the fixing of the support bracket fastened cuboid of above-mentioned two hinges and doorframe can be welded construction, also can be bolt fastening structure.

4. the extraordinary blind hinge of heavy door as claimed in claim 1, it is characterized in that: above-mentioned cover cap can be selected the stainless sheet steel material for use, also can select the plating light sheet for use, and available screw or rivet are fastened on the cuboid.

5. the feature blind hinge of heavy door as claimed in claim 1, it is characterized in that: above-mentioned angular contact ball bearing is a monolithic construction, its external diameter Φ 1 is between 22～24 millimeters, internal diameter Φ 2 is between 10～14 millimeters, steel ball size is between 3～4 millimeters of Φ, and the gap of Internal and external cycle should be less than 0.1 millimeter.

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