CN203570060U

CN203570060U - Anti-derailment pulley

Info

Publication number: CN203570060U
Application number: CN201320624240.XU
Authority: CN
Inventors: 张朝辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-10
Filing date: 2013-10-10
Publication date: 2014-04-30
Anticipated expiration: 2023-10-10

Abstract

The utility model discloses an anti-derailment pulley. The anti-derailment pulley comprises a support and a door plate connecting part arranged on the support, wherein two or more guide wheels are arranged on the support in the movement direction, and at least one guide wheel is installed on the support in a vertically movable mode. According to the anti-derailment pulley, the support is provided with two or more guide wheels, at least one guide wheel can move vertically, when the anti-derailment pulley is installed, a rail is well installed firstly, then all the guide wheels are adjusted to be located on the same straight line and are placed in the rail, the lower edges of the guide wheels abut against the lower portion of the rail, one guide wheel which can move vertically is adjusted to move upwards and abut against the upper portion of the rail, the guide wheels abut against the upper portion and the lower portion of the rail at the same time accordingly, connection between the pulley and the rail is firmer, derailment is avoided, and the security coefficient is high. Furthermore, the size of the guide wheels does not need to be strictly matched with the size of the rail, universality is high, machining difficulty is reduced, and production efficiency is improved.

Description

A kind of derailing pulley

Technical field

The utility model relates to a kind of pulley, particularly relates to a kind of derailing pulley that is applied to door.

Background technology

In daily life, the buildings such as modern room, hotel, office building, shower house are the reasonable use of considering easy to use and effective area, thereby the door and window using mostly is the push-pull door that aluminium alloys, plastic-steel or other materials are made, door move left and right in orbit and or close or open.In the prior art, these push-pull doors are installed in orbit by pulley, and described pulley comprises and connects the support of push-pull door and the directive wheel of joining rails.In installation process, need first directive wheel to be put into track, and then track is installed to assigned address, its installation difficulty is high, consuming time for a long time, has had a strong impact on production efficiency.Further, due to the existence of mismachining tolerance, can there is deviation in the size of part track or directive wheel, and directive wheel cannot be packed in track, or, make to have larger gap between directive wheel and track, in use there is the danger of derailing.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provide a kind of easy for installation, can derailment-proof pulley.

The utility model solves the technical scheme that its technical problem adopts:

A kind of derailing pulley, comprises support, is arranged on the door-plate connector on support, on described support, along the direction of motion, is provided with two or more directive wheels, and wherein at least one directive wheel can be rack-mount up or down.

In the utility model, described directive wheel is rack-mount by adjustable shelf and bolt I, and adjustable shelf is provided with the screwed hole I corresponding with bolt I, and described bolt I is passed screwed hole I and is connected on support.

In the utility model, on described adjustable shelf, along the direction of motion, be provided with three directive wheels, directive wheel before, during and after being called,,, middle directive wheel can be arranged on adjustable shelf up or down.

In the utility model, described middle directive wheel is provided with screwed hole II, and bolt II is passed this screwed hole II and is connected on adjustable shelf.

In the utility model, described adjustable shelf is provided with a loose slot, and the middle part of middle directive wheel is extended with a boss in loose slot, and the width of boss is corresponding with the width of loose slot, and screwed hole II is positioned on this boss.

The beneficial effects of the utility model are: the utility model is provided with two or more directive wheels on support, wherein at least one directive wheel can move up and down, when mounted, can first track be installed, then all directive wheels are adjusted to straight line, and directive wheel is put into track, the lower limb of directive wheel is against below track, then regulate one of them directive wheel moving up and down, make it up move and be against the top of track, directive wheel is against the top and the bottom of track simultaneously like this, make pulley more stable with being connected of track, prevent derailing, safety factor is high.Further, the size of directive wheel and the size of track are without rigorous cooperation, and highly versatile, has reduced difficulty of processing, enhances productivity.

Accompanying drawing explanation

Below in conjunction with drawings and embodiments, the utility model is further illustrated:

Fig. 1 is the structural representation of the present embodiment;

Fig. 2 is another angle structural representation of the present embodiment;

Fig. 3 is the structural representation after middle directive wheel moves;

Fig. 4 is another angle structural representation after middle directive wheel moves.

The specific embodiment

Referring to figs. 1 through Fig. 4, a kind of derailing pulley provided by the utility model, comprise support 2, be arranged on the door-plate connector 1 on support 2, on described support 2, along the direction of motion, be provided with two or more directive wheels 4, wherein at least one directive wheel 4 can be arranged on support 2 up or down, certainly also all directive wheel 4 can move up and down, and just structure is comparatively complicated, is not suitable for large-scale production.In the present embodiment, on described adjustable shelf 5, along the direction of motion, be provided with three directive wheels 1,

directive wheel

31,32,33 before, during and after being called, middle directive wheel 32 can be arranged on adjustable shelf 5 up or down, and forward and backward

directive wheel

31,33 is fixedly mounted on adjustable shelf 5 by fixed axis.

As preferred embodiment, described directive wheel 4 is arranged on support 2 by adjustable shelf 5 and bolt I 6, adjustable shelf 5 is provided with the screwed hole I corresponding with bolt I 6, described bolt I 6 is passed screwed hole I and is connected on support 2, when turning bolt I 6, relative position up and down between adjustable frame 5 and support 2, is convenient to the height of adjustment doors.

Be the more excellent embodiment of wherein one of directive wheel 32 move modes below, described middle directive wheel 32 is provided with screwed hole II, bolt II 7 is passed this screwed hole II and is connected on adjustable shelf 5, and when turning bolt II 7, middle directive wheel 32 moves up and down under the cooperation of bolt II 7 and screwed hole II.Further, described adjustable shelf 5 is provided with a loose slot 8, and the middle part of middle directive wheel 32 is extended with a boss in loose slot, and screwed hole II is positioned on this boss, and the width of boss is corresponding with the width of loose slot 8, avoids middle directive wheel 32 to rotate around bolt II 7.Because the mode moving up and down is numerous, at this, differ one for example.

The foregoing is only preferential embodiment of the present utility model, as long as within the technical scheme that realizes the utility model object with basic identical means all belongs to protection domain of the present utility model.

Claims

1. a derailing pulley, comprise support (2), be arranged on the door-plate connector (1) on support (2), it is characterized in that: described support (2) is upper is provided with two or more directive wheels (4) along the direction of motion, and wherein at least one directive wheel (4) can be arranged on support (2) up or down.

2. a kind of derailing pulley according to claim 1, it is characterized in that: described directive wheel (4) is arranged on support (2) by adjustable shelf (5) and bolt I (6), adjustable shelf (5) is provided with the screwed hole I corresponding with bolt I (6), and described bolt I (6) is passed screwed hole I and is connected on support (2).

3. a kind of derailing pulley according to claim 1 and 2, it is characterized in that: described adjustable shelf (5) is upper is provided with three directive wheels (1) along the direction of motion, directive wheel before, during and after being called (31,32,33), middle directive wheel (32) can be arranged on adjustable shelf (5) up or down.

4. a kind of derailing pulley according to claim 3, is characterized in that: described middle directive wheel (32) is provided with screwed hole II, and bolt II (7) is passed this screwed hole II and is connected on adjustable shelf (5).

5. a kind of derailing pulley according to claim 4, it is characterized in that: described adjustable shelf (5) is provided with a loose slot (8), the middle part of middle directive wheel (32) is extended with a boss in loose slot, the width of boss is corresponding with the width of loose slot (8), and screwed hole II is positioned on this boss.