CN215762391U

CN215762391U - Fan butterfly door self-locking mechanism

Info

Publication number: CN215762391U
Application number: CN202121664087.4U
Authority: CN
Inventors: 张艳春; 成林; 刘玉香; 贾笑春
Original assignee: Shandong Zhongrun Machinery Co ltd
Current assignee: Shandong Zhongrun Machinery Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-02-08
Anticipated expiration: 2031-07-21

Abstract

The utility model belongs to the technical field of fans and relates to a fan butterfly door self-locking mechanism.A surface of a butterfly door steel ring is fixedly connected with two symmetrically arranged spring hanging plates, the surface of each spring hanging plate is movably linked with a group of butterfly doors, the surface of one group of butterfly doors is provided with a butterfly door lock catch, the surface of the other group of butterfly doors is fixedly connected with a stop ring, the surface of the stop ring is fixedly connected with a butterfly door hook matched with the butterfly door lock catch, one end of a reset spring is fixedly connected to the surface of the spring hanging plate, the other end of the reset spring is fixedly connected to the surface of the butterfly door, the fan normally operates to blow the butterfly doors open, the butterfly doors are closed under the action of inertia force, the butterfly doors are parallel to the air outlet direction of the fan at the moment, a pneumatic pendulum vertically arranged on the butterfly doors deflects by 45 degrees under the action of air, and the butterfly doors are locked; when the fan is stopped, the pneumatic pendulum bob is separated by the automatic return butterfly door self-locking mechanism, and the butterfly door is pulled tightly on the butterfly door steel ring under the action of the return spring, so that the automatic unlocking is completed.

Description

Fan butterfly door self-locking mechanism

The technical field is as follows:

the utility model belongs to the technical field of fans, and particularly relates to a butterfly door self-locking mechanism of a fan.

Background art:

at present, most butterfly door fans home and abroad do not have self-locking mechanism, lead to the butterfly door of fan to be in half the state of opening under the high repression, form very big windage, make the fan performance reduce, some producers adopt actuating mechanism to carry out opening of butterfly door and close, but actuating mechanism of high quality accounts for 1/3 of fan cost, the actuating mechanism of not good quality often goes out the quality problem again, and cost and fault rate are high moreover, consequently need to design a fault rate and the butterfly door self-locking mechanism of with low costs urgently.

The utility model has the following contents:

in order to solve the problems in the background art, the utility model provides a self-locking mechanism of a butterfly door of a fan, which solves the technical problems that the butterfly door of the existing fan cannot be self-locked and the automatic opening structure is high in cost.

In order to achieve the purpose, the butterfly door self-locking mechanism of the fan comprises a butterfly door steel ring and a return spring, wherein two spring hanging plates are fixedly connected to the surface of the butterfly door steel ring, and are symmetrically and fixedly connected to the surface of the butterfly door steel ring; every spring link plate surface active link has a set of butterfly door, and one of them is a set of butterfly door surface is provided with butterfly door hasp, another group butterfly door fixed surface is connected with the snap ring, and snap ring fixed surface is connected with butterfly door couple, and butterfly door couple and butterfly door hasp phase-match, reset spring one end fixed connection are on spring link plate surface, and other end fixed connection is on butterfly door surface, the total two and symmetry settings of reset spring.

As a further scheme of the utility model: the butterfly door hook is hung on the surface of the butterfly door lock catch.

As a further scheme of the utility model: and a pneumatic pendulum is arranged on the surface of the stop ring.

Compared with the prior art, the butterfly door is blown open by arranging the reset spring, the stop ring and the pneumatic pendulum bob through normal operation of the fan, the butterfly doors are close to each other under the action of inertia force, the butterfly doors are parallel to the air outlet direction of the fan at the moment, the pneumatic pendulum bob vertically arranged on the butterfly doors deflects for 45 degrees under the action of wind, and the butterfly doors are locked; when the fan is stopped, the pneumatic pendulum bob is separated by the automatic return butterfly door self-locking mechanism, the butterfly door is pulled tightly on the butterfly door steel ring under the action of the reset spring, and then the automatic unlocking is completed.

Description of the drawings:

the accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a side view of the present invention;

FIG. 2 is a front view of the present invention;

in the figure: 1. a butterfly door; 2. a return spring; 3. a pneumatic pendulum bob; 4. a snap ring; 5. a butterfly door hook; 6. a butterfly door lock catch; 7. a butterfly door steel ring; 8. spring hanging plate.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

The structure of the self-locking mechanism of the butterfly door of the fan in the embodiment is shown in fig. 1 and 2, and comprises butterfly door steel rings 7 and reset springs 2, wherein two spring hanging plates 8 are fixedly connected to the surfaces of the butterfly door steel rings 7, the two spring hanging plates 8 are symmetrically and fixedly connected to the surfaces of the butterfly door steel rings 7, two groups of butterfly doors 1 are movably connected to the surfaces of the spring hanging plates 8, the butterfly doors 1 are symmetrically and movably connected to the surfaces of the spring hanging plates 8, a butterfly door lock catch 6 is arranged on the surface of one group of butterfly doors 1, a stop ring 4 is fixedly connected to the surface of the other group of butterfly doors 1, the reset springs 2, the stop ring 4 and the pneumatic pendulum bob 3 are arranged, when the fan is used, when the fan is stopped, the pneumatic pendulum bob 3 is disengaged by a self-locking mechanism of the automatic-return butterfly doors 1, the butterfly doors 1 are tightly pulled on the butterfly door steel rings 7 under the action of the reset springs 2, so as to complete automatic unlocking, the surface of the stop ring 4 is fixedly connected with a butterfly door hook 5, the butterfly door hook 5 is matched with a butterfly door lock catch 6, one end of a return spring 2 is fixedly connected to the surface of a spring hanging plate 8, and the other end of the return spring is fixedly connected to the surface of the butterfly door 1; the reset springs 2 are symmetrically arranged.

Specifically, the butterfly door hook 5 is hung on the surface of the butterfly door lock catch 6.

Specifically, the surface of the stop ring 4 is provided with a pneumatic pendulum 3.

The working principle of the embodiment is as follows:

s1, under the condition that the fan is stopped, the butterfly door 1 is tensioned on a butterfly door steel ring 7 by a return spring 2, and the fan is prevented from leaking air; when the fan is started, wind power formed instantaneously blows the butterfly door 1 open, the butterfly doors 1 are close to each other under the action of inertia force, at the moment, the butterfly door 1 is parallel to the air outlet direction of the fan, and a pneumatic pendulum 3 arranged on the butterfly door 1 drives a butterfly door hook 5 to swing for 45 degrees and lock a butterfly door lock catch 6;

s2, when the fan operates, the negative pressure is increased, and the air quantity is reduced, the self-locking device of the butterfly door 1 locks the butterfly door 1, the butterfly door 1 does not return, when the fan stops, the pneumatic pendulum bob 3 automatically returns, the self-locking mechanism of the butterfly door 1 is disengaged, and the butterfly door 1 is tensioned on a butterfly door steel ring 7 under the action of the reset spring 2.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a fan butterfly door self-locking mechanism, includes butterfly door steel ring (7) and reset spring (2), its characterized in that: the butterfly door is characterized in that two symmetrically arranged spring hanging plates (8) are fixedly connected to the surface of the butterfly door steel ring (7), a group of butterfly doors (1) is movably connected to the surface of each spring hanging plate (8), a butterfly door lock catch (6) is arranged on the surface of one group of butterfly doors (1), a stop ring (4) is fixedly connected to the surface of the other group of butterfly doors (1), a butterfly door hook (5) is fixedly connected to the surface of the stop ring (4), the butterfly door hook (5) is matched with the butterfly door lock catch (6), one end of a reset spring (2) is fixedly connected to the surface of each spring hanging plate (8), and the other end of the reset spring is fixedly connected to the surface of each butterfly door (1); the two return springs (2) are symmetrically arranged.

2. The automatic locking mechanism of the butterfly door of the blower as claimed in claim 1, wherein: the butterfly door hook (5) is hung on the surface of the butterfly door lock catch (6).

3. The automatic locking mechanism of the butterfly door of the blower as claimed in claim 1, wherein: the surface of the stop ring (4) is provided with a pneumatic pendulum (3).