CN204040737U

CN204040737U - Timed-shutoff door gear

Info

Publication number: CN204040737U
Application number: CN201420105384.9U
Authority: CN
Inventors: 娄万东
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-10
Filing date: 2014-03-10
Publication date: 2014-12-24
Anticipated expiration: 2024-03-10

Abstract

The utility model belongs to mechanical device technical field, particularly a kind of timed-shutoff door gear.This timed-shutoff door gear is characterized in that: comprise expansion link, and expansion link one end is fixed on a body, and the expansion link other end is connected with the fastening devices be fixed on wall by buffer spring, and expansion link lower end is provided with mechanical timer and rotor.Structure is simple, easy to use; A timing can be made to close, and the life facilitating people extends the application life of door simultaneously; Cost is low, easy to utilize.

Description

Timed-shutoff door gear

(1) technical field

The utility model relates to a kind of timed-shutoff door gear, belongs to mechanical device technical field.

(2) background technology

The door of current most of public place is all equipped with door engine miscellaneous, automatically closes, the corridor cell gate of such as residential quarter under the state allowing door close the door at nobody, as long as lose braking, closing device will play a role at once, and door is shut.Often run in life and do not need a situation of at once closing, go-cart is such as needed to enter, or repeatedly carry thing, at this moment often need second people to help and keep the opening of door, or use the instrument such as brick, rope to make door keep open state for a long time, such opposite house body, door closer all can cause damage, and also leave a lot of potential safety hazard.Existing door engine itself is provided with regulatory function, but can only realize the adjustment of door closing speed, cannot realize delayed startup, even start by set date.

(3) summary of the invention

The utility model, in order to make up the defect of prior art, provides a kind of structure simple, easy to usely can make a timed-shutoff door gear that timing is closed.

The utility model is achieved by the following technical solution:

A kind of timed-shutoff door gear, it is characterized in that: comprise expansion link, expansion link one end is fixed on a body, and the expansion link other end is connected with the fastening devices be fixed on wall by buffer spring, and expansion link lower end is provided with mechanical timer and rotor.

Wherein:

Described mechanical timer comprises drive rod, and mechanical timer is connected with buffer spring by timing controlled bar.

Described expansion link comprises interior expansion link and external extension bar, is provided with bayonet lock shell fragment in expansion link, and bayonet lock shell fragment is connected with expansion link by elastic spring.

The normal door that the utility model does not affect a body closes door (enabling amplitude is less), as open angle <90 °, the utility model at once plays a role and to be closed by door, when the needs long period opens the door, can firmly door body be opened more than 90, now, interior expansion link will be fixed together by temporary transient and external extension bar, thrust starts mechanical timer simultaneously, door keeps open under the utility model effect, rotor after mechanical timer work certain hour (time can set) retreats when will promote bayonet lock shell fragment, thus expansion link can be extended, door is closed under the utility model effect.

The beneficial effects of the utility model are: structure is simple, easy to use; A timing can be made to close, and the life facilitating people extends the application life of door simultaneously; Cost is low, easy to utilize.

(4) accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described.

Accompanying drawing 1 is structural representation when the utility model door opens;

Accompanying drawing 2 is structural representation when the utility model door is closed.

In figure: 1, Men Ti; 2, external extension bar; 3, interior expansion link; 4, buffer spring; 5, fastening devices; 6, mechanical timer; 7, rotor; 8, timing controlled bar; 9, bayonet lock shell fragment; 10, elastic spring.

Detailed description of the invention

Accompanying drawing is specific embodiment of the utility model.

The utility model timed-shutoff door gear as shown in Figure 1 and Figure 2, comprise expansion link, expansion link one end is fixed on a body 1, the expansion link other end is connected with the fastening devices 5 be fixed on wall by buffer spring 4, expansion link lower end is provided with mechanical timer 6 and rotor 7, mechanical timer 6 comprises drive rod, mechanical timer 6 is connected with buffer spring 4 by timing controlled bar 8, expansion link comprises interior expansion link 2 and external extension bar 3, be provided with bayonet lock shell fragment 9 in expansion link, bayonet lock shell fragment 9 is connected with expansion link by elastic spring 10.

This device controls the scalability of expansion link by bayonet lock shell fragment 9, and inside and outside expansion link, dead slot overlaps is that bayonet lock shell fragment 9 ejects under the effect of elastic spring 10, and blocked by external extension bar 2, expansion link cannot extend (door maintenance open state); Under the thrust of opening the door, the drive rod of mechanical timer 6 is pushed and have rotated certain angle (reaching timing object), and mechanical timer 6 is activated, and rotor 7 has been turned over certain angle simultaneously, thus makes bayonet lock shell fragment 9 to block expansion link; In timing range, mechanical timer 6 operates under contained spring effect, and shell fragment to original state, and is pushed back expansion link inside by rotor 7 clawback gradually, loses the braking to expansion link, and expansion link can extend, thus closes door body.

Claims

1. a timed-shutoff door gear, it is characterized in that: comprise expansion link, expansion link one end is fixed on a body (1), the expansion link other end is connected with the fastening devices be fixed on wall (5) by buffer spring (4), expansion link lower end is provided with mechanical timer (6) and rotor (7), mechanical timer (6) comprises drive rod, mechanical timer (6) is connected with buffer spring (4) by timing controlled bar (8), expansion link comprises interior expansion link (3) and external extension bar (2), bayonet lock shell fragment (9) is provided with in expansion link, when door is open by a relatively large margin, expansion link is compressed to ultimate attainment, now bayonet lock shell fragment (9) ejects and interior expansion link (3) and external extension bar (2) is locked together, door is fixed on open state, the expansion link that continues to push will promote timing controlled bar (8), timing controlled bar (8) is made to turn over certain angle, reach the object of rotary timing switch.

2. timed-shutoff door gear according to claim 1, is characterized in that described bayonet lock shell fragment (9) is connected with expansion link by elastic spring (10).