CN2795393Y - Automatic closing door device - Google Patents

Abstract

The utility model relates to an automatic closing door device which comprises a speed reducing motor (1), a clutch (2) which is sheathed on the output end of the speed reducing motor (1), an outer cover (3) which is sheathed outside the clutch (2) and a push rod (4) which is connected with the top part of the outer cover (3), wherein the outer side of the at least one of friction sheets (21) on the friction sheet clutch (2) is provided with a convex lug, the lower end of the outer cover (3) is provided with a groove (32a) which is adaptive to the convex lug on one of the friction sheets (21), and the convex lug is inserted in the groove (32a); the outer cover (3) is in driving connection with the friction sheets (21) which are respectively provided with the convex lug. When the push rod is impacted by force in an opposite direction in the process of swinging movement, the friction sheets which are respectively provided with the convex lug overcome friction force of both sides of one of the friction sheets and move in the opposite direction in company with the outer cover and the push rod so that when the automatic closing door is closed, the automatic closing door is forcedly opened outside and is suitable for practical application because the utility model is sheathed with the clutch on the output end of the speed reducing motor (1), and the clutch is matched with the outer cover outside the clutch by the friction sheets which are skillfuly provided with the convex lug.

Description

A kind of automatic door closing device

Technical field

The utility model relates to a kind of device that closes door, especially refers to a kind of automatic door closing device that is used for traditional door.

Background technology

At present, many doors that can automatic switch are arranged on the market, as motor-driven power door, slidingtype move door, swing type moves door or the like, this automatic door, its structure with doorframe is special, and parts are more, install very complicated, and the traditional door for having installed can't be suitable at all, so, among family and working environment, already installed traditional door can only close by hand switch, can not allow it close automatically by people's wish within doors again.And at some in particular cases, people within doors needs its energy to close automatically with its wish, and the device of the independent this self-closing doors that can artificially control is not also arranged at present.

And for traditional door, as long as promote this door it is closed, so, simple mutually perpendicular connection push rod on the reducing motor output, push rod will be swung along with the rotation of reducing motor output, so just can promote door, thereby realize closing the door automatically by the swing of push rod.This automatic door closing device that is used for traditional door, but mainly include remote sensing control reducing motor, with the vertically disposed each other push rod of its output, during use, this device fix on the ground or metope behind the door on, this reducing motor of remote control just can realize closing automatically door easily.But this automatic door closing device, when the push rod swing promotes door, if the someone enters and pushes the door open outdoors, when promptly door is subjected to reciprocal active force, this push rod will stop swinging, even is moved toward opposite direction under the forceful action, so just burns out reducing motor easily, even can damage push rod, be unsuitable for practical application.

Summary of the invention

Technical problem to be solved in the utility model is at above-mentioned prior art present situation, and provides a kind of push rod to swing along with this reciprocal power when being subjected to reciprocal active force, opens the door thereby avoid hindering, and is more suitable for the automatic door closing device of practical application.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this automatic door closing device, include reducing motor and push rod, it is characterized in that on the output of described reducing motor, being arranged with clutch, one of them sheet friction plate outside of friction plate group on this clutch is provided with lug, and outside described clutch, be arranged with the outer cover that has the groove that adapts with described lug, described lug just is embedded in the groove of described outer cover, thereby described outer cover is linked to each other with the described friction plate transmission that is provided with lug, and described push rod just is connected the top of described outer cover.

The design of the friction plate group of described clutch can be adopted existing various technology, but be the frictional fit between the reinfored clutch friction plate group, make the work effect of clutch better, the unit group of described clutch friction plate group can include the annular friction sheet, the described friction plate that is provided with lug, endoporus is the friction plate of waist shape, wherein, described endoporus is the periphery that the friction plate of waist shape is fastened on described clutch core, and rotate with clutch synchronization all the time, and described annular friction sheet does not link to each other with the direct transmission of clutch with the friction plate that is provided with lug, be to be just rotation under frictional force that the friction plate of waist shape produces drives at endoporus, the friction plate that is provided with lug rotates, and drives outer cover then and rotates together.Like this, when not being subjected to reciprocal power, described annular friction sheet and to be provided with the friction plate of lug because be subjected to endoporus be the enough frictional force that produces of the friction plate of waist shape and rotating synchronously smoothly, then drive outer cover with and on push rod rotate synchronously, and when reciprocal power acquires a certain degree on the push rod, the described friction plate that is provided with lug has just overcome the frictional resistance with other friction plates, can be with this reciprocal power backswing.

Be the frictional fit between the friction plate group of further reinfored clutch, make the work effect of clutch better, the unit group setting of friction plate group is the friction plate of waist shape to be followed successively by the described described annular friction sheet of friction plate, a slice, the described endoporus of a slice that is provided with lug of a slice, the described annular friction sheet of a slice is good again, constitutes the friction plate group by many groups unit group friction plate.

For ease of the assembling of friction plate group on clutch, and the friction plate group on the clutch under normal circumstances can be rotated with the central synchronous of clutch, the friction plate group bottom of described clutch can be against on the edge at described clutch middle part by spring, and the top of this clutch friction plate group then is against outward flange one side at described clutch top.

For making the outer cover can be peripherally pivoted at clutch smoothly, described outer cover can be movably connected in the top of described clutch by screw, can slide over each other between the two, and outer cover does not detach the top of clutch.

Be instant packed transportation, described push rod and outer cover can separately manufacture two independent parts, and described outer cover is then horizontal has through hole, and an end of described push rod just is inserted in this through hole, thereby both are connected as a single entity, and the installation of push rod also become more simple.

For making more firm being connected among the outer cover of push rod, also be convenient to simultaneously the assembling of outer cover, described outer cover can be split up into two parts up and down in the through hole at its top, make the fastening one in top and the bottom of this outer cover by screw, like this, screw also makes push rod clamping tightly within the through hole of this outer cover in the top and the bottom of fastening this outer cover.

Compared with prior art, advantage of the present utility model is: by sheathed clutch on the output of reducing motor, and match by outer cover sheathed on the friction plate that is provided with lug on the clutch friction plate group and the clutch cleverly, this automatic door closing device be not subjected under the external force disturbed condition, by the friction plate group on the reducing motor rotating band dynamic clutch, then drive outer cover and push rod rotates synchronously, push rod just can be closed the door smoothly automatically, realize closing automatically door, and when this push rod is subjected to reciprocal active force in swing process, the power that acts on the push rod just passes to the friction plate that clutch is provided with lug by outer cover, after this reciprocal active force acquires a certain degree, the friction plate that is provided with lug has overcome the frictional force that its both sides are subjected to, along with outer cover and push rod move toward opposite direction, so can the reciprocal power of inhibition on door, thereby make this automatic door closing device at closing time, do not hinder extraneous opening the door by force, and can not damage push rod and reducing motor, increase application life, and be suitable for practical application more.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 removes partial sectional view behind reducing motor and the push rod for the utility model embodiment;

Fig. 3 is the three-dimensional exploded view of Fig. 2;

Fig. 4 is the structural representation of the friction plate of waist shape for endoporus among the utility model embodiment;

Fig. 5 is the structural representation of annular friction sheet among the utility model embodiment;

Fig. 6 is for being provided with the structural representation of the friction plate of lug among the utility model embodiment.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 6, this automatic door closing device includes the outer sheathed outer cover 3 of clutch 2 sheathed on the output of reducing motor 1, this reducing motor 1, this clutch 2 and is connected the push rod 4 at these outer cover 3 tops, referring to Fig. 1;

Wherein, the unit group of the friction plate group 21 of described clutch 2 includes annular friction sheet 21a, the outside is provided with the friction plate 21b of lug, endoporus is the friction plate 21c of waist shape, wherein, endoporus is the periphery that the friction plate 21c of waist shape is fastened on clutch 2 centers, and rotate synchronously with described clutch 2 all the time, and annular friction sheet 21a and the friction plate 21b that is provided with lug are to be just rotation under frictional force that the friction plate 21c of waist shape produces drives at endoporus, and the unit group setting of the friction plate group 21 of this clutch 2 is followed successively by the described friction plate 21b that is provided with lug of a slice, the described annular friction sheet of a slice 21a, the described endoporus of a slice is the friction plate 21c of waist shape, at the described annular friction sheet of a slice 21a, constitute friction plate group 21 by five groups of unit group friction plates again, referring to Fig. 2～Fig. 6;

Friction plate group 21 bottoms of described clutch 2 are against by spring 22 on the edge 23 at clutch 2 middle parts, and the top of these clutch 2 friction plate groups 21 then is against outward flange 24 1 sides at described clutch 2 tops, referring to Fig. 2 and Fig. 3;

Described outer cover 3 is horizontal has through hole 33, and be split up into top 31 and lower part 32 at these through hole 33 places, the lower part 32 of this outer cover 3 is movably connected in the top of described clutch 2 by screw 6, and, these outer cover 3 lower parts 32 have the groove 32a that adapts with the described lug that is provided with the friction plate 21b of lug, and this lug that is provided with the friction plate 21b of lug just is embedded among this groove 32a, thereby the lower part 32 of outer cover 3 is linked to each other with the friction plate 21b transmission that this is provided with lug, and an end of described push rod 4 just is inserted in the through hole 33 of this outer cover 3, make the top 31 and the lower part 32 fastening one of this outer cover 3 by screw 5, make the firm top that is fixed on outer cover 3 of push rod 4 simultaneously, referring to Fig. 1, Fig. 2 and Fig. 3.

Claims (7)

1, a kind of automatic door closing device, include reducing motor (1) and push rod (4), it is characterized in that on the output of described reducing motor (1), being arranged with clutch (2), one of them sheet friction plate outside of friction plate group (21) on this clutch (2) is provided with lug, and outside described clutch (2), be arranged with the outer cover (3) that has the groove (32a) that adapts with described lug, described lug just is embedded in the groove (32a) of described outer cover (3), thereby described outer cover (3) is linked to each other with described friction plate (21b) transmission that is provided with lug, and described push rod (4) just is connected the top of described outer cover (3).

2, automatic door closing device according to claim 1, the unit group that it is characterized in that the friction plate group (21) of described clutch (2) includes annular friction sheet (21a), the described friction plate (21b) that is provided with lug, endoporus is the friction plate (21c) of waist shape, wherein, described endoporus is the periphery that the friction plate (21c) of waist shape is fastened on described clutch (2) center, and rotate synchronously with described clutch (2) all the time, and described annular friction sheet (21a) and the friction plate (21b) that is provided with lug they are to be just rotation under frictional force that the friction plate (21c) of waist shape produces drives at described endoporus.

3, automatic door closing device according to claim 2, friction plate (21c), described annular friction sheet (21a) that it is waist shape that the unit group setting that it is characterized in that the friction plate group (21) of described clutch (2) is followed successively by described friction plate (21b), described annular friction sheet (21a), the described endoporus that is provided with lug.

4, automatic door closing device according to claim 3, the bottom that it is characterized in that described clutch (2) friction plate group (21) is against on the edge (23) at described clutch (2) middle part by spring (22), and the top of this clutch (2) friction plate group (21) then is against outward flange (24) one sides at described clutch (2) top.

5,, it is characterized in that described outer cover (3) is movably connected in the top of described clutch (2) by screw (6) according to the described automatic door closing device of arbitrary claim in the claim 1 to 4.

6, automatic door closing device according to claim 5, it is characterized in that described outer cover (3) horizontal have a through hole (33), an end of described push rod (4) just is inserted in this through hole (33), thereby both are connected as a single entity.

7, automatic door closing device according to claim 6 is characterized in that described outer cover (3) two parts about the through hole (33) at its top is located to be split up into, and makes the fastening one in top (31) and lower part (32) of this outer cover (3) by screw (5).

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