CN203297157U

CN203297157U - Exhaust fan frame

Info

Publication number: CN203297157U
Application number: CN2013203432281U
Authority: CN
Inventors: 过兆中
Original assignee: ZHEJIANG ZHONGYOU ELECTRICAL APPLIANCES CO LTD
Current assignee: ZHEJIANG ZHONGYOU ELECTRICAL APPLIANCES CO LTD
Priority date: 2013-06-13
Filing date: 2013-06-13
Publication date: 2013-11-20
Anticipated expiration: 2023-06-13

Abstract

The utility model discloses an exhaust fan frame which comprises a frame body. The frame is provided with a rectangular outer ring. A circular inner ring is arranged in the frame. The inner ring is provided with a blocking ring which extends to the back face of the frame. A plurality of angle frames are evenly arranged on the corners of the frame. The angle frames and the frame are fixedly connected in a thread mode, and the angle frames bend toward the inner ring. Fixing pieces are arranged at the top ends of the angle frames and are connected to form a mounting base. The angle frames are fixedly connected in series through steel rings. Compared with the prior art, the blocking ring which extends to the back face of the frame is arranged on the inner ring of the frame, the combined structure of a traditional frame and a protective cover is ingeniously simplified, structure is very simple, using is safe, the protective cover does not need to be arranged additionally, the protection capacity that a fan blade is prevented from damaging people is achieved, the blocking ring has the function for facilitating air circulation, exhaust efficiency is improved, and meanwhile due to the structure that the angle frames and the steel rings are fixedly connected in series, the exhaust fan frame is firmer and more reliable.

Description

A kind of ventilating fan framework

Technical field

The utility model relates to a kind of ventilating fan framework.

Background technique

Ventilating fan is a kind of common electric, has been widely used in the various fields such as engineering factory building, warehouse, meeting room, hotel, restaurant and kitchen,, to improve the air quality of the interior space, reaches the circulation exchange of outdoor air.

In prior art, the ventilating fan framework comprises frame body, framework is offered the circular hole of selecting due to blade, and framework is provided for the skeleton of fixed electrical machinery, at the framework two ends, protective housing is set in order to protect generally simultaneously, this protective housing need to be produced respectively, and installment work is very loaded down with trivial details, and therefore, it is many that this class ventilating fan framework exists component, baroque problem, its ventilation efficiency is also lower simultaneously.

The model utility content

The purpose of this utility model is to provide a kind of ventilating fan framework for above-mentioned the deficiencies in the prior art, can simplify and strengthen mechanical structure, strengthens ventilation efficiency.

For achieving the above object, the technical solution of the utility model is: a kind of ventilating fan framework, comprise frame body, framework has the rectangle outer ring, offers circular inner ring in framework, described inner ring is provided with the back-up ring that extends to the framework back side, evenly be provided with a plurality of corner brackets on the angle of framework, described corner bracket and framework are spirally connected fixing and crooked towards inner ring, and the top of corner bracket is provided with fixed plate, a plurality of fixed plates form fitting seat, and described a plurality of corner brackets are fixed together by the steel ring series connection.

As the further setting of such scheme, the inner wall section of described back-up ring is circular-arc.

As the further setting of such scheme, described back-up ring and framework are one-body molded.

The beneficial effects of the utility model are: compared with prior art; the back-up ring that extends to the framework back side is set on the inner ring of framework; simplified dexterously the structure that conventional frame is combined with protective housing, not only structure is very simple, uses safety; need not to install in addition protective housing and just have the protective capability that prevents that flabellum from hurting sb.'s feelings; back-up ring also has the function of the circulation of air of being beneficial to, and strengthens ventilation efficiency, simultaneously; corner bracket, by the structure that the steel ring series connection is fixed together, makes the utility model firmer, reliable.

Description of drawings

Fig. 1 is stereogram of the present utility model;

Fig. 2 is plan view of the present utility model;

Fig. 3 is the A-A sectional view of Fig. 2.

In figure: 1, framework, 2, inner ring, 3, back-up ring, 4, corner bracket, 5, fixed plate, 6, steel ring.

Embodiment

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

Embodiment:

As shown in Figure 1, Figure 2, Figure 3 shows, the utility model comprises framework 1 body, framework 1 has the rectangle outer ring, offer circular inner ring 2 in framework 1, described inner ring 2 is provided with the back-up ring 3 that extends to framework 1 back side, evenly is provided with a plurality of corner brackets 4 on the angle of framework 1, and described corner bracket 4 is spirally connected fixing with framework 1 and towards inner ring 2 bendings, the top of corner bracket 4 is provided with fixed plate 5, and described a plurality of corner brackets 4 are fixed together by steel ring 6 series connection.

The inner wall section of described back-up ring 3 is circular-arc.

Described back-up ring 3 is one-body molded with framework 1.

Working principle of the present utility model is: offer circular inner ring 2 in framework 1, inner ring 2 provides space for vane rotary, inner ring 2 is provided with the back-up ring 3 that extends to framework 1 back side, back-up ring 3 is one-body molded with framework 1, back-up ring 3 plays protective action, need not to install in addition protective housing and just have the protective capability that prevents that flabellum from hurting sb.'s feelings, and simplified dexterously the structure that conventional frame is combined with protective housing, its structure is very simple; The inner wall section of back-up ring 3 is circular-arc, to air, provides flow channel, is conducive to the function of circulation of air, strengthens ventilation efficiency; The top of corner bracket 4 is provided with fixed plate 5, and a plurality of fixed plates 5 form fitting seat and are used for installing and the fixed drive motor, and simultaneously, corner bracket 4 is fixed together by steel ring 6 series connection, makes corner bracket firmer, reliable, strengthens overall structure of the present utility model.

Claims

1. ventilating fan framework, comprise framework (1) body, framework (1) has the rectangle outer ring, offer circular inner ring (2) in framework (1), it is characterized in that: described inner ring (2) is provided with the back-up ring (3) that extends to framework (1) back side, evenly be provided with a plurality of corner brackets (4) on the angle of framework (1), described corner bracket (4) and framework (1) are spirally connected fixing and towards inner ring (2) bending, the top of corner bracket (4) is provided with fixed plate (5), and described a plurality of corner brackets (4) are fixed together by steel ring (6) series connection.

2. a kind of ventilating fan framework according to claim 1, it is characterized in that: the inner wall section of described back-up ring (3) is circular-arc.

3. a kind of ventilating fan framework according to claim 1 is characterized in that: described back-up ring (3) is one-body molded with framework (1).