CN200985703Y

CN200985703Y - Device for automatically closing door

Info

Publication number: CN200985703Y
Application number: CN 200620141384
Authority: CN
Inventors: 曾华水
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-21
Filing date: 2006-12-21
Publication date: 2007-12-05
Anticipated expiration: 2016-12-21

Abstract

The utility model relates to an automatic closing door device, and the technical issue of the utility model to be solved is providing an automatic closing door device with simple structure, reasonable design and convenient manufacture. The technical project is that the automatic closing door device has a hollow shell, which has a core shaft fixed with the door frame by hinge and the middle of which has a bump of the surface shape, and that the outside of the core shaft is sleeved with a matching shaft sleeve, which has a cut, the shape and thickness of which match with the bump on the core shaft, and that the upside of the outside of the shaft sleeve has a group of bumps arranged uniformly, and that the top of the shaft sleeve has an upper bump of cylindrical shape, which is sleeved with a spring, the other end of which is pressed by a round briquetting connected with the top of the shell by a pin roll. The device is characterized in that the shape of the bump on the core shaft and the cut in the shaft sleeve are both spiral ascending curves, the circumference ranges of which are both 180 degrees. The utility model can be used in various objects with doors, refrigerator, wine chest, etc.

Description

Door check

Technical field

The utility model relates to a kind of door check, is applicable to the various places that door is arranged, and particularly needs to keep the equipment of uniform temperature as domestic refrigerator, kitchen refrigerator, commercial show cabinet, parlor wine cabinet etc.

Background technology

At present, a door body that uses in people's daily life all is to use common hinge or hinge mode fixedly connected, opening door need could close it to the home position with hand push, not only cumbersome, lack human oriented design, and the not enough or excessive body that causes of exerting oneself takes place easily because of thrust do not close or rebound, when this situation occurs in refrigerator and showcase etc. and needs to keep on the equipment of inner uniform temperatures, electricity wasting not only, and causing the food of storing in refrigerator or the showcase easily because of cold draining, temperature does not reach to be set requirement and takes place rotten; Though and engendered various automatic door closing devices in recent years, as requirement is closed with interior automatically at 90 ° after opening the door, and remains static more than 90 °, exists low-angle to open the door and can not close defective automatically., can solve low-angle and close requirement automatically to more than 30 ° as 10 ° of hinge prepackages, close requirement automatically with interior, attend to one thing and lose sight of another, can't satisfy the various demands of different clients but can't satisfy 90 °.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of door check simple in structure, reasonable in design, easy to make is provided, after door is opened, only need to exerting oneself slightly in the other direction, can under the effect of self flexible member, door be closed automatically, and door is when turning over 180 °, enter above-mentioned critical condition, avoided the appearance of the problems referred to above.

The technical scheme that the utility model adopted is: door check, has hollow casing, be equipped with in it and the fixing mandrel of doorframe hinge, its medium position is shaped on the projection of a curve form, the mandrel outside is with the axle sleeve that cooperates with it, have the breach that shape and thickness match with projection on the mandrel on the axle sleeve, described axle sleeve outer upper is evenly arranged one group of projection, this axle sleeve top is provided with a cylindrical upper protruding block, this upper protruding block is with spring outward, the other end of spring is pressed with circular briquetting, briquetting is connected by bearing pin with the shell top, the shape that it is characterized in that institute's gap on projection on the described mandrel and the axle sleeve is spiralling curve, and its circumferential span is 180 °.

The shape of institute's gap is the helical form that seamlessly transits on projection on the described mandrel and the axle sleeve.

The shape of institute's gap is the helical form of ladder transition on projection on the described mandrel and the axle sleeve.

The number of described projection is 4.

The beneficial effects of the utility model are: design has spring in the utility model, in the time of not only can making door in off position, can close very tightly, and when door is opened into above-mentioned critical condition, can locate automatically, when entering critical condition, the angle that door turns over is about 180 °, can under adjusting, hinge angle satisfy 180 ° with interior any adjustment.

Description of drawings

Fig. 1 is a main sectional view of the present utility model.

Fig. 2 is the front view of mandrel among the utility model embodiment 1.

Fig. 3 is the rear elevation of Fig. 2.

Fig. 4 is the upward view of Fig. 2.

Fig. 5 is the front view of the utility model embodiment 1 bottom bracket axle.

Fig. 6 is the rear elevation of Fig. 5.

Fig. 7 is the vertical view of Fig. 5.

Fig. 8 is the upward view of Fig. 5.

Fig. 9 is the main sectional view of the utility model midplane bearing.

Figure 10 is a sectional view of going up black iron among Fig. 9.

Figure 11 is the upward view of Figure 10.

Figure 12 is the vertical view of Fig. 9 middle (center) bearing pedestal.

Figure 13 is the front view of mandrel among the utility model embodiment 2.

Figure 14 is the rear elevation of Figure 13.

Figure 15 is the front view of the utility model embodiment 2 bottom bracket axles.

Figure 16 is the upward view of Figure 15.

The specific embodiment

Embodiment 1: shown in Fig. 1～8, present embodiment has hollow casing 1, the mandrel of fixing with doorframe hinge 10 2 is housed in it, its medium position is shaped on the projection 2-1 of an inclined plane shape, mandrel 2 outsides be with it cooperate can be along its axle sleeve 3 in axial sliding, have the breach 3-1 that shape and thickness match with projection 2-1 on the mandrel on the axle sleeve, the shape of the gap 3-1 of institute is the inclined-plane that seamlessly transits on projection 2-1 on the described mandrel and the axle sleeve, its circumferential span is 180 °, described axle sleeve 3 outer upper are evenly arranged four projection 3-2, this axle sleeve top is provided with a cylindrical upper protruding block 3-3, this upper protruding block is with spring 4 outward, the other end of spring is pressed with circular briquetting 5, and briquetting is connected by bearing pin 6 with the shell top; Described mandrel 2 ends are with the nut 11 of doorframe 8, stop 9, plane bearing 7, hinge 10 and fixing above-mentioned part successively, shown in Fig. 9～12, plane bearing 7 is by the annular black iron 7-1 of two symmetries and the annular bearing pedestal 7-2 that is clipped in the middle form up and down, plane bearing 7 is equipped with ball 7-3, help reducing the frictional force between doorframe 8 and the hinge 10, make rotation more flexible.

Operating principle of the present utility model is: laterally zygomorphic on the door-hinge of door this door check is installed respectively, wherein mandrel 2 is fixedlyed connected with doorframe hinge 10, so when door rotates, driving axle sleeve 3 rotates, breach 3-1 on the axle sleeve 3 moves upward along mandrel projection 2-1, thus compression spring 4; The angle of opening when door is during greater than 180 ° (not containing the prepackage angle), and the minimum point of the breach 3-1 on the axle sleeve 3 moves to mandrel projection 2-1 inclined-plane peak, and at this moment door just is in open mode, can conveniently pick and place article; When needs at closing time, only need to exerting oneself slightly in the other direction, make the minimum point of the breach 3-1 on the axle sleeve 3 move to the glide slope on mandrel projection 2-1 inclined-plane, can under the active force of spring 4, automatically revert to the home position.

Embodiment 2: shown in Figure 13～16, present embodiment is substantially the same manner as Example 1, and its difference only is: the shape of the gap 3-1 of institute is the helicoid of ladder transition on projection 2-1 on the described mandrel and the axle sleeve.

Claims

1, a kind of door check, has hollow casing (1), be equipped with in it and the fixing mandrel (2) of doorframe hinge, its medium position is shaped on the projection (2-1) of a curve form, mandrel (2) outside is with the axle sleeve (3) that cooperates with it, have the breach (3-1) that shape and thickness match with projection (2-1) on the mandrel on the axle sleeve, described axle sleeve (3) outer upper is evenly arranged one group of projection (3-2), this axle sleeve top is provided with a cylindrical upper protruding block (3-3), this upper protruding block is with spring (4) outward, the other end of spring is pressed with circular briquetting (5), briquetting is connected by bearing pin (6) with the shell top, it is characterized in that: the shape of institute's gap (3-1) is spiralling curve on projection on the described mandrel (2-1) and the axle sleeve, and its circumferential span is 180 °.

2, door check according to claim 1 is characterized in that: the shape of institute's gap (3-1) is the helical form that seamlessly transits on projection on the described mandrel (2-1) and the axle sleeve.

3, door check according to claim 1 is characterized in that: the shape of institute's gap (3-1) is the helical form of ladder transition on projection on the described mandrel (2-1) and the axle sleeve.

4, door check according to claim 1 is characterized in that: the number of described projection (3-2) is 4.