CN2736500Y

CN2736500Y - Tensioning mechanism for automatic door synchronous belt

Info

Publication number: CN2736500Y
Application number: CNU2004200904883U
Authority: CN
Inventors: 郑继坤
Original assignee: 沈永年
Priority date: 2004-09-24
Filing date: 2004-09-24
Publication date: 2005-10-26
Anticipated expiration: 2014-09-24

Abstract

The utility model provides a tensioning mechanism for automatic door synchronous belt, comprising a chassis (1), a regulating push pedal (2) and a tooth gear (4), wherein the regulating push pedal (2) is fixed on the chassis (1) and the tooth gear (4) is fixed on the regulating push pedal (2). The utility model is characterized in that the tail part of the regulating push pedal (2) is provided with an upward buckle part (22), and the tail part of the chassis (1) is also provided with an upward buckle part (12) behind the buckle part (22) of the regulating push pedal (2). The head part and tail part of a regulating stem (7) insert in the small holes of the two buckle parts respectively, and the head part can move relatively to the buckle part (22) of the regulating push pedal (2) and is spaced by the flange at the end of the regulating stem (7) while the tail end is connected with the small hole of the buckle part (12) of the chassis (1) through a screw thread. A preload spring (6) is sheathed at the middle of the regulating stem (7), and the head part abuts on the buckle part (22) of the regulating push pedal (2) while the end part abuts on the flange of the regulating stem (7). Compared with the prior art, the utility model has advantage that the regulating stem which is provided with the preload spring is arranged between the regulating push pedal and the chassis, so when the accommodation push pedal is loosened from the chassis, with the action of the preload spring, the utility model can move along with the tooth gear automatically without manual operation, which causes the synchronous belt to be tensioned thereby, realizes the goal of easy operation.

Description

A kind of automatic door strainer of band synchronously that is used for

Technical field

The utility model relates to a kind of automatic door field, particularly a kind of automatic door strainer of band synchronously that is used for.

Background technology

Existing auto-door driving mechanism generally comprises motor and reducing gear thereof, driving gear, band and driven gear synchronously, band ringwise synchronously, and be meshed with driving gear that is positioned at its two ends and driven gear respectively, the drive block of door leaf promptly is arranged on synchronously and is with, during work, motor drives the driving gear rotation through reducing gear, drives synchronous Tape movement then.Consider the reliability and the accuracy of transmission of power, take to synchronously toward adopting flexible tape, and the tensioning degree of band can directly influence the application life of synchronous band and the reliability that door leaf opens and closes synchronously, therefore when mounted or in use for some time, must be regulated the tensioning degree of synchronous band, generally this is to realize by the position of regulating driven gear, in traditional work, need driven gear is subjected to displacement and the synchronous band of tension simultaneously, it be very inconvenient to operate.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of operation to be used for the automatic door strainer of band synchronously easily at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this strainer that is used for the synchronous band of automatic door includes base, regulate push pedal and gear, regulating the mode that push pedal can regulate displacement with base relatively is fixed on the base, gear then is fixed on to be regulated in the push pedal, it is characterized in that, described adjusting push pedal has a kink upwards at afterbody, and the afterbody of base also has a kink and being positioned at after the kink of regulating push pedal upwards, the head of one adjusting rod and afterbody are inserted in respectively in the aperture corresponding on two kinks, wherein but the aperture on the head relative adjustment push pedal kink of adjusting rod moves and is spacing by the flange that is positioned at the adjusting rod end, the afterbody of adjusting rod then with the kink of base on aperture be threaded mutually, one preloading spring is set in adjusting rod on the position between two kinks, the head of preloading spring offsets with the kink of regulating push pedal, afterbody be arranged on the supermedial flange of adjusting rod and offset.

Can have mounting hole in the described adjusting push pedal, and pass this mounting hole by screw and be threaded mutually, like this, tighten screw and be about to regulate the relative base of push pedal and fix, can make and regulate push pedal and move relative to base and unscrew screw with screw on the base.

The described flange that is positioned at the adjusting rod end can be formed by the collar that this place is set, and also can adopt other prior aries.

The supermedial flange of described adjusting rod can be formed by the packing ring that is arranged on this place, also can adopt other prior aries.

Described gear can be fixed on various prior aries and regulate in the push pedal, but preferably can be in the following ways: the central axis of gear has the downward extension that a periphery is carved with screw thread, this downward extension is passed and is regulated aperture corresponding in the push pedal, and be connected with a nut, base then has the hole to hold this downward extension and nut in corresponding position.

Compared with prior art, the utility model is by regulating the adjusting rod that the band preloading spring is set between push pedal and the base, make and regulate push pedal when unclamping with base, under the effect of preloading spring, need not manually automatically the area gear and moves forward, make synchronous band tensioning, thereby realize the purpose of easy manipulation.

Description of drawings

Fig. 1 is the structure cross-sectional schematic of the utility model embodiment.

Fig. 2 is the vertical view (preloading spring is in the pretension state and adds the part of being decorated with synchronous band) of Fig. 1.

The specific embodiment

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

As shown in Figure 1 and Figure 2, being used for the synchronous strainer of being with of automatic door includes base 1, regulates push pedal 2, gear 4 and adjusting rod 7;

Regulate in the push pedal 2 and have mounting hole 21, and pass this mounting hole 21 by screw 3 and be threaded mutually, like this, tighten screw 3 and be about to regulate push pedal 2 relative bases 1 and fix, adjusting push pedal 2 is moved relative to base 1 and unscrew screw 3 with screw on the base 1; And regulate push pedal 2 and have a kink 22 upwards, and on this kink 22, have an aperture at afterbody;

The periphery that has the central axis of gear 4 is carved with the downward extension 41 of screw thread, this downward extension 41 is passed and is regulated aperture corresponding in the push pedal 2, and be connected with a nut 9, thereby gear 4 is fixed in the adjusting push pedal 2, and base 1 then has hole 11 to hold described downward extension 41 and nut 9 in corresponding position;

The afterbody of base 1 also has a kink 12 and being positioned at after the kink 22 of regulating push pedal 2 upwards, and has a screw on this kink 12;

The head of adjusting rod 7 is inserted in the aperture of regulating on push pedal 2 kinks 22 and can relatively moves, it is spacing before regulating push pedal 2 kinks 22 with the head of adjusting rod 7 that the end of adjusting rod 7 is provided with a collar 5, and the afterbody of adjusting rod 7 is inserted in the interior and bolt of screw on base 1 kink 12;

One preloading spring 6 is set in adjusting rod 7 on the position between described two kinks, and the head of preloading spring 6 offsets with the kink 22 of regulating push pedal 2, afterbody be arranged on adjusting rod 7 supermedial packing rings 8 and offset.

When automatic door is installed, 7 reaches of turn adjusting rod, preloading spring 6 promptly is in the pretension state, referring to Fig. 2; In case be with 10 to occur relaxing when needing tensioning synchronously, then only need unscrew the screw 3 of secured adjusted push pedal 2, then regulate the i.e. reach automatically under preloading spring 6 effects of push pedal 2, be with 10 tensionings synchronously thereby make, referring to Fig. 1.

Claims

1, a kind of automatic door strainer of band synchronously that is used for, include base (1), regulate push pedal (2) and gear (4), regulating the mode that push pedal (2) can regulate displacement with base (1) relatively is fixed on the base (1), gear (4) then is fixed on to be regulated in the push pedal (2), it is characterized in that, described adjusting push pedal (2) has a kink (22) upwards at afterbody, and the afterbody of base (1) also have one upwards kink (12) and be positioned at regulate push pedal (2) kink (22) afterwards, the head of one adjusting rod (7) and afterbody are inserted in respectively in the aperture corresponding on two kinks, wherein adjusting rod (7) but head relative adjustment push pedal (2) kink (22) on aperture move and spacing by the flange that is positioned at adjusting rod (7) end, the afterbody of adjusting rod (7) then with the kink (12) of base (1) on aperture be threaded mutually, one preloading spring (6) is set in adjusting rod (7) on the position between two kinks, the head of preloading spring (6) offsets with the kink (22) of regulating push pedal (2), afterbody be arranged on the supermedial flange of adjusting rod (7) and offset.

2, the automatic door strainer of band synchronously that is used for according to claim 1 is characterized in that having in the described adjusting push pedal (2) mounting hole (21), and passes this mounting hole (21) by screw (3) and be threaded mutually with screw on the base (1).

3, the automatic door strainer of band synchronously that is used for according to claim 1 and 2 is characterized in that the described flange that is positioned at adjusting rod (7) end is formed by the collar that this place is set (5).

4, the automatic door strainer of band synchronously that is used for according to claim 1 and 2 is characterized in that the supermedial flange of described adjusting rod (7) is formed by the packing ring that is arranged on this place (8).

5, the automatic door strainer of band synchronously that is used for according to claim 1 and 2, the central axis that it is characterized in that described gear (4) has the downward extension (41) that a periphery is carved with screw thread, this downward extension (41) is passed and is regulated the aperture that correspondence is gone up in push pedal (2), and be connected with a nut (9), base (1) then has hole (11) to hold this downward extension (41) and nut (9) in corresponding position.