阅读说明：本技术 一种通风道内的风机安装机构 (Fan installation mechanism in air duct ) 是由 俞柯 王民 方胜良 俞志青 于 2021-08-17 设计创作，主要内容包括：本发明涉及一种通风道内的风机安装机构,包括固定架和活动架,固定架的边缘焊接有若干钢条,活动架的边缘焊接有若干钢条扣,若干钢条与若干钢条扣以一对一的方式配合；固定架和活动架之间连接有螺栓,螺栓的转动能够驱动活动架远离或接近固定架,远离或接近固定架的活动架能够折弯钢条。拧动螺栓,使活动架远离固定架,活动架上的钢条扣折弯钢条,钢条向风筒的中心方向折弯,钢条的中部抵压在风筒的底部边缘上,钢条的上端向远离风筒的方向翘起,抵压在通风道的侧壁上。如此,钢条的中部夹紧风筒,而钢条的上端抵紧在通风道的侧壁上,实现风机在通风道内的固定,安装方便。(The invention relates to a fan mounting mechanism in an air duct, which comprises a fixed frame and a movable frame, wherein a plurality of steel bars are welded at the edge of the fixed frame, a plurality of steel bar buckles are welded at the edge of the movable frame, and the plurality of steel bars and the plurality of steel bar buckles are matched in a one-to-one mode; the bolt is connected between the fixed frame and the movable frame, the movable frame can be driven to move away from or be close to the fixed frame by the rotation of the bolt, and the steel bar can be bent by the movable frame away from or close to the fixed frame. Twist the bolt, make the adjustable shelf keep away from the mount, the billet on the adjustable shelf is buckled the billet of bending, and the billet is bent to the central direction of dryer, and the middle part of billet supports and presses on the bottom edge of dryer, and the upper end of billet supports to the orientation perk of keeping away from the dryer, supports and presses on the lateral wall of ventiduct. So, the tight dryer of middle part clamp of billet, and the upper end of billet supports tightly on the lateral wall of ventiduct, realizes the fixed of fan in the ventiduct, simple to operate.)

1. The utility model provides a fan installation mechanism in ventiduct, includes mount (10) and adjustable shelf (20), its characterized in that: a plurality of steel bars (30) are welded at the edge of the fixed frame, a plurality of steel bar buckles (21) are welded at the edge of the movable frame, and the plurality of steel bars and the plurality of steel bar buckles are matched in a one-to-one mode; be connected with bolt (40) between mount and the adjustable shelf, the rotation of bolt can drive the adjustable shelf and keep away from or be close to the mount, and the adjustable shelf of keeping away from or being close to the mount can the billet of bending.

2. A fan mounting mechanism in an air duct as claimed in claim 1, wherein: the head end of billet (30) and mount (10) welding, the perpendicular distance of billet tail end and mount central line is greater than the perpendicular distance of billet head end and mount central line, and the external diameter of mount equals the external diameter of adjustable shelf (20).

3. A fan mounting mechanism in an air duct as claimed in claim 1, wherein: one end of the steel bar (30) far away from the fixed frame (10) is provided with a bending structure (31).

4. A fan mounting mechanism in an air duct as claimed in claim 1, wherein: the fixing frame (10) comprises a first circular ring (11) and a plurality of first supporting strips (12) supported in the first circular ring; the movable frame (20) comprises a second circular ring (22) and a plurality of second supporting bars (23) supported in the second circular ring.

5. The fan mounting mechanism in an air duct of claim 4, wherein: the center of the fixing frame (10) is provided with a light hole, a bolt (40) penetrates through the light hole, a limiting piece (41) is installed on the bolt, and the limiting piece limits the relative position of the bolt and the light hole; the center of the movable frame (20) is provided with a screw hole, and the bolt is matched with the screw hole.

Technical Field

The invention relates to a fan, in particular to installation of a barrel type fan.

Background

The roof of the villa, as shown in figure 1, is provided with an air duct 50, the top of which is provided with an unpowered hood 51. Under the action of outdoor wind, the hood rotates to exhaust air indoors and outdoors. If there is no wind outdoors or the wind force is too low, the hood cannot rotate or the rotating speed is too low, and the indoor air needs to be exhausted as soon as possible, such as smoke after smoking, oil smoke in kitchens and peculiar smell emitted by indoor articles. In this case, a fan driven by electric energy is required. Because the air duct is long and narrow and is vertical, how to install the fan in the air duct becomes a technical problem.

Disclosure of Invention

The technical problems solved by the invention are as follows: a mechanism for installing a fan into a ventilation duct at the roof of a villa is provided.

In order to solve the technical problems, the invention provides the following technical scheme: a fan mounting mechanism in an air duct comprises a fixed frame and a movable frame, wherein a plurality of steel bars are welded at the edge of the fixed frame, a plurality of steel bar buckles are welded at the edge of the movable frame, and the plurality of steel bars and the plurality of steel bar buckles are matched in a one-to-one mode; the bolt is connected between the fixed frame and the movable frame, the movable frame can be driven to move away from or be close to the fixed frame by the rotation of the bolt, and the steel bar can be bent by the movable frame away from or close to the fixed frame.

The barrel type fan is firstly placed in the air duct, the fan mounting mechanism is placed in the air duct and is positioned below the fan, and one end (set as the upper end of the steel bar) of each steel bar, which is far away from the fixing frame, surrounds the periphery of the fan air duct. Twist the bolt, make the adjustable shelf keep away from the mount, the billet on the adjustable shelf is buckled the billet of bending, and the billet is bent to the central direction of dryer, and the middle part of billet supports and presses on the bottom edge of dryer, and the upper end of billet supports to the orientation perk of keeping away from the dryer, supports and presses on the lateral wall of ventiduct. So, the tight dryer of middle part clamp of billet, and the upper end of billet supports tightly on the lateral wall of ventiduct, realizes the fixed of fan in the ventiduct.

The fan mounting mechanism is suitable for mounting a fan in a long and narrow air duct (the inner side wall of the air duct is inconvenient to punch), the fan is convenient to mount and dismount, only the bolt is screwed to enable the movable frame to be close to the fixed frame, the steel bars are restored to the original state and do not press against the bottom edge of the air duct and the side wall of the air duct any more, the fan falls into the fan mounting mechanism, and an operator takes the fan mounting mechanism out of the air duct.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of a roof ventilation duct for a villa;

FIG. 2 is a schematic view of the mounting of a blower 60 and the blower mounting mechanism 100 of the present invention in an air duct;

FIG. 3 is a schematic view of the bottom-up fan mounting mechanism 100 of FIG. 2;

FIG. 4 is a schematic view of the holder 10;

fig. 5 is a schematic view of the movable frame 20;

FIG. 6 is a schematic view of the fan mounting mechanism of FIG. 2 securing a fan.

The symbols in the drawings illustrate that:

100. the invention relates to a fan mounting mechanism;

10. a fixed mount; 11. a first circular ring; 12. a first support bar; 13. a first disc;

20. a movable frame; 21. buckling a steel bar; 22. a second circular ring; 23. a second supporting strip; 24. a second disc;

30. a steel bar; 31. a bending structure;

40. a bolt; 41. a limiting member;

50. an air duct; 51. an unpowered hood;

60. a fan.

Detailed Description

Referring to fig. 2, a fan mounting mechanism in an air duct includes a fixed frame 10 and a movable frame 20, wherein a plurality of steel bars 30 are welded on the edge of the fixed frame, a plurality of steel bar buckles 21 are welded on the edge of the movable frame, and the plurality of steel bars and the plurality of steel bar buckles are matched in a one-to-one manner; be connected with bolt 40 between mount and the adjustable shelf, the rotation of bolt can drive the adjustable shelf and keep away from or be close to the mount, and the adjustable shelf of keeping away from or being close to the mount can the billet of bending.

In practice, with reference to fig. 2 and 6, an operator may push the drum fan up into the plenum 50 using a rod that is held against the fan 60. Thereafter, the operator puts the blower mounting mechanism 100 of the present invention into the air duct 50, which is located below the blower, and the end of all the steel bars 30 away from the fixing frame 10 (which is set as the upper end of the steel bars) surrounds the periphery of the blower barrel. At this moment, mount 10 is located the lowest position, adjustable shelf 20 is located the top of mount, bolt 40's bottom is down, the operator can conveniently twist the bolt, make adjustable shelf 20 upwards displacement and keep away from mount 10, the steel bar buckle 21 on the adjustable shelf bends billet 30, make all billets bend to the central direction of dryer, the middle part of billet 30 supports and presses on the bottom edge of dryer, the billet takes place elastic deformation, the upper end of billet is to the direction perk of keeping away from the dryer, support and press on the lateral wall of ventiduct 50. Thus, the middle of the steel bar clamps the bottom edge of the air duct, the upper end of the steel bar abuts against the side wall of the air duct, and the fan 60 is fixed in the air duct 50. The operator can then remove the bar for holding against the fan.

When dismantling fan 60, the operator twists bolt 40 with the screwdriver, makes adjustable shelf 20 descend and be close to mount 10, and the latter half of all billet 30 outwards expands, is the open mode, and the middle part of billet no longer supports the bottom edge of pressing the dryer, and the upper end of billet no longer offsets with the lateral wall of ventiduct 50, and the fan is no longer fixed, under the action of gravity, falls in fan installation mechanism, specifically falls in the encirclement circle that all billet 30 constitute. Thereafter, the operator takes out the fan mounting mechanism and the fan 60 therein downward from the air duct 50.

The head end of the steel bar 30 (i.e. the lower end of the steel bar) is welded to the fixing frame 10, the vertical distance between the tail end of the steel bar (i.e. the upper end of the steel bar) and the central line of the fixing frame is greater than the vertical distance between the head end of the steel bar and the central line of the fixing frame, and the outer diameter of the fixing frame is equal to the outer diameter of the movable frame 20. That is, when the bars are not subjected to an external force, all the bars 30 are formed in a flared shape on the fixing frame 10, and the inner diameter of the upper portion of the enclosure formed by all the bars is large while the inner diameter of the lower portion thereof is small. The movable frame 20 moves upward and is far away from the fixed frame 10, the steel bar buckle 21 on the movable frame acts on the steel bars, and all the steel bars gather together towards the center direction of the fixed frame, so that the middle parts of all the steel bars are pressed against the bottom edge of the fan 60.

As a modification, the end of the steel bar 30 remote from the fixing frame 10 (i.e. the upper end of the steel bar) is provided with a bending structure 31. This bending structure supports when pressing on 50 inside walls of ventiduct, takes place elastic deformation, so, the upper end of billet can tightly support and press on the inside wall of ventiduct to improve the stability after fan 60 is fixed.

As shown in fig. 4, the fixing frame 10 includes a first ring 11, a plurality of first supporting bars 12 supported in the first ring; as shown in fig. 5, the movable frame 20 includes a second ring 22, and a plurality of second supporting bars 23 supported in the second ring. The fixed frame and the movable frame are both hollow structures, and the air exhaust effect of the fan 60 is not influenced. The center of the fixing frame 10 is provided with a first disc 13, one end of each first supporting strip is welded on the first disc, and the first disc is provided with a unthreaded hole. A second disc 24 is arranged at the center of the movable frame 20, one end of each second supporting bar is welded on the second disc, and a screw hole is formed in the second disc. The bolt 40 passes through the unthreaded hole and engages the threaded hole. The bolt is provided with a limiting piece 41 which limits the relative position of the bolt and the unthreaded hole. Alternatively, the retaining member is a pin member. Due to the existence of the limiting part, an operator can drive the movable frame 20 to ascend by screwing the bolt 40 forwards; and the bolt is screwed reversely to drive the movable frame to descend.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.