CN211343487U

CN211343487U - Visual access door of fan

Info

Publication number: CN211343487U
Application number: CN201922394977.7U
Authority: CN
Inventors: 梁立霞; 王丹; 陈洁祥; 金霏扬
Original assignee: Shanghai General Fan Co Ltd
Current assignee: Shanghai General Fan Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-25
Anticipated expiration: 2029-12-25

Abstract

The utility model provides a visual access door of a fan, which comprises an outer frame and an inner frame, wherein the outer frame comprises a bottom plate, an upper side plate, a lower side plate, a left side plate and a right side plate; the middle of the bottom plate is provided with a through hole for installing an inner frame; the lower end of the inner frame is rotatably connected to the two sides of the bottom of the through hole through a rotating shaft; the inner frame comprises a rectangular bottom plate, an observation hole is formed in the middle of the rectangular bottom plate, the rectangular frame is vertically connected with the edge of the rectangular bottom plate, organic glass is arranged on the rectangular bottom plate, a glass pressing strip which is the same as the rectangular bottom plate in shape is arranged on the organic glass, mounting holes which are consistent in position are formed in the rectangular bottom plate, the organic glass and the glass pressing strip, and the mounting holes penetrate through the mounting holes and are provided with bolts for fixing. The utility model discloses make full use of snail board width, visual space improves for original circular structure greatly, makes things convenient for daily maintenance and maintenance work more. The access door utilizes the glazing bead, and the apron adopts organic glass, adopts bottom blend stop and side blend stop, and the leakproofness improves greatly.

Description

Visual access door of fan

Technical Field

The utility model belongs to the fan field, concretely relates to visual access door of fan.

Background

Generally, a high-pressure small-flow fan is difficult to install due to the narrow width of a volute plate. The common practice of such fans is to open a circular access door on a scroll plate, but the width of the circular scroll plate is limited, the visual range is limited, and the operation is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to prior art exists provides a visual access door of fan to the access door that solves current low discharge fan is subject to the snail board width, the problem of the maintenance of not being convenient for.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a visual access door of a fan is installed on the fan and comprises an outer frame and an inner frame, wherein the outer frame comprises a bottom plate, an upper side plate, a lower side plate, a left side plate and a right side plate; the middle of the bottom plate is provided with a through hole for mounting the inner frame, and the upper side plate, the lower side plate, the left side plate and the right side plate are respectively connected to the upper side edge, the lower side edge, the left side edge and the right side edge of the bottom plate; the lower end of the inner frame is rotatably connected to two sides of the bottom of the through hole through a rotating shaft; the inside casing includes the rectangle bottom plate, open the centre of rectangle bottom plate has the observation hole, along the edge vertical connection of rectangle bottom plate has the rectangle frame, organic glass is equipped with on the rectangle bottom plate, organic glass be equipped with the glazing bead that the rectangle bottom plate shape is the same, the rectangle bottom plate organic glass all open the mounting hole that has the position unanimity on the glazing bead, pass the mounting hole is equipped with the bolt fastening.

The utility model discloses further set up to, towards the fan inside the bottom of the face of inside casing is connected with the bottom blend stop.

The utility model discloses further set up to, be in the fan outside upside, left side and the right side of the face of inside casing are connected with the side blend stop.

The utility model discloses further set up to, the lower side board with the contained angle of bottom plate is the obtuse angle.

The utility model is further arranged in that the upper end of the bottom plate is provided with a jack, the top of the inner frame is connected with an extension plate, the extension plate is connected with an insert, the insert comprises two fixed plates, the fixed plates are provided with waist holes, and screws are fixed through the waist holes; an elastic piece formed by bending a plate-shaped metal plate is connected between the fixing plates, and the width of the metal plate is smaller than that of the jack; and a telescopic hole is enclosed between the metal plates, the inner end and the outer end of the telescopic hole are smaller than the height of the jack, and the middle of the telescopic hole is larger than the height of the jack.

To sum up, the utility model discloses following beneficial effect has:

(1) visual access door make full use of snail board width, visual space improves for original circular structure greatly, makes things convenient for daily maintenance and maintenance work more.

(2) The access door uses a glass pressing strip, and the cover plate adopts organic glass, so that the sealing property is greatly improved; in addition, the bottom barrier strip and the side barrier strip are adopted, so that the sealing property is improved.

Drawings

FIG. 1 is a view of the installation position of the present invention on a fan;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

fig. 3 is a schematic structural view of an opened state of the embodiment of the present invention;

FIG. 4 is a schematic view of a combined structure of a rectangular bottom plate, organic glass and a glass bead;

fig. 5 is a schematic structural view of the insert.

Wherein, 1, an outer frame; 2. a base plate; 3. an upper side plate; 4. a lower side plate; 5. a left side plate; 6. a right side plate; 7. a rotating shaft; 8. an inner frame; 9. a rectangular bottom plate; 10. an observation hole; 11. a rectangular frame; 12. organic glass; 13. pressing a glass strip; 14. a bolt; 15. a bottom barrier strip; 16. side barrier strips; 17. a jack; 18. an extension plate; 19. a plug-in; 20. a fixing plate; 21. a waist hole; 22. a screw; 23. an elastic member; 24. a telescopic hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As an embodiment of the utility model, a visual access door of fan installs on the snail board of fan, see fig. 1, and the pointed promptly of A is the utility model discloses a visual access door. Referring to fig. 2-4, the visual access door comprises an outer frame 1 and an inner frame 8, wherein the outer frame 1 comprises a bottom plate 2, an upper side plate 3, a lower side plate 4, a left side plate 5 and a right side plate 6. The middle of the bottom plate 2 is provided with a through hole for installing an inner frame 8, and the upper side plate 3, the lower side plate 4, the left side plate 5 and the right side plate 6 are respectively connected to the upper side edge, the lower side edge, the left side edge and the right side edge of the bottom plate 2. The lower end of the inner frame 8 is rotatably connected to the two sides of the bottom of the through hole through the rotating shaft 7, so that the inner frame 8 can be conveniently opened to carry out more specific maintenance when necessary. The inner frame 8 comprises a rectangular bottom plate 9, an observation hole 10 is formed in the middle of the rectangular bottom plate 9, a rectangular frame 11 is vertically connected with the edge of the rectangular bottom plate 9, organic glass 12 is arranged on the rectangular bottom plate 9, a glass pressing strip 13 which is the same as the rectangular bottom plate 9 in shape is arranged on the organic glass 12, mounting holes with the same position are formed in the rectangular bottom plate 9, the organic glass 12 and the glass pressing strip 13, and bolts 14 which penetrate through the mounting holes are arranged for fixing.

In order to provide a large enough operation space as much as possible, the inner frame 8 is convenient to pull down, an included angle between the lower side plate 4 and the bottom plate 2 is set to be an obtuse angle, namely, the lower side plate 4 is an inclined surface which inclines downwards, and the inner frame 8 is convenient to rotate around the rotating shaft 7 and then leans against the lower side plate 4.

As a preferred embodiment of the present invention, the bottom of the surface facing the inner frame 8 inside the fan is connected with a bottom barrier 15. Further, side barrier strips 16 are connected to the upper side, the left side and the right side of the surface of the inner frame 8 positioned outside the fan. The arrangement of the bottom barrier strips 15 and the side barrier strips 16 can fully improve the sealing performance of the fan.

As an embodiment of the present invention, referring to fig. 2-5, the upper end of the bottom plate 2 is provided with a jack 17, the top of the inner frame 8 is connected with an extension plate 18, the extension plate 18 is connected with a plug-in 19, the plug-in 19 comprises two fixing plates 20, the fixing plates 20 are provided with waist holes 21, and screws 22 are fixed through the waist holes 21. An elastic member 23 formed by bending a plate-shaped metal plate having a width smaller than that of the insertion hole 17 is connected between the fixed plates 20. The metal plates are surrounded to form a telescopic hole 24, the inner end and the outer end of the telescopic hole 24 are smaller than the height of the jack 17 to ensure that the plug-in 19 can pass through the jack 17, the middle of the telescopic hole 24 is larger than the height of the jack 17 to ensure that the plug-in 19 can be fixed by the jack 17 after passing through the jack 17, when the inner frame 8 is pulled outwards forcibly, the two fixing plates 20 are close to each other, the two sides of the elastic part 23 are pressed inwards, the telescopic hole 24 is reduced, and the plug-in 19 is pulled out of the jack 17.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A visual access door of a draught fan is installed on the draught fan and is characterized by comprising an outer frame and an inner frame, wherein the outer frame comprises a bottom plate, an upper side plate, a lower side plate, a left side plate and a right side plate; the middle of the bottom plate is provided with a through hole for mounting the inner frame, and the upper side plate, the lower side plate, the left side plate and the right side plate are respectively connected to the upper side edge, the lower side edge, the left side edge and the right side edge of the bottom plate; the lower end of the inner frame is rotatably connected to two sides of the bottom of the through hole through a rotating shaft; the inside casing includes the rectangle bottom plate, open the centre of rectangle bottom plate has the observation hole, along the edge vertical connection of rectangle bottom plate has the rectangle frame, organic glass is equipped with on the rectangle bottom plate, organic glass be equipped with the glazing bead that the rectangle bottom plate shape is the same, the rectangle bottom plate organic glass all open the mounting hole that has the position unanimity on the glazing bead, pass the mounting hole is equipped with the bolt fastening.

2. The visual access door of fan of claim 1, characterized in that the bottom of the face of the inner frame facing the inside of the fan is connected with a bottom barrier.

3. The visual access door of a blower of claim 1, wherein side bars are connected to the upper, left and right sides of the face of the inner frame that is outside the blower.

4. The visual access door of fan of claim 1, characterized in that the angle between the lower side plate and the bottom plate is an obtuse angle.

5. The visual access door of the fan according to claim 1, wherein the upper end of the bottom plate is provided with a jack, the top of the inner frame is connected with an extension plate, the extension plate is connected with an insert, the insert comprises two fixing plates, the fixing plates are provided with waist holes, and screws are fixed through the waist holes; an elastic piece formed by bending a plate-shaped metal plate is connected between the fixing plates, and the width of the metal plate is smaller than that of the jack; and a telescopic hole is enclosed between the metal plates, the inner end and the outer end of the telescopic hole are smaller than the height of the jack, and the middle of the telescopic hole is larger than the height of the jack.