CN218030843U

CN218030843U - Glass fiber reinforced plastic roof fan with low noise

Info

Publication number: CN218030843U
Application number: CN202221865709.4U
Authority: CN
Inventors: 刘万勤; 张为军; 孙勇安; 仇丹群; 夏恒彬; 蒋辉
Original assignee: Jiangsu Hengkang Electrical Co ltd
Current assignee: Jiangsu Hengkang Electrical Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-12-13
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses a glass steel roof fan that possesses low noise relates to glass steel roof fan technical field, the utility model discloses a device shell, fixed connection be at the inside axial fan of device shell, with axial fan output fixed connection's flabellum, inlay in the filter screen at device shell top and fixed connection is at the rain-proof cover at device shell top, the mounting groove has been seted up to the lateral wall of device shell, and the inside threaded connection of mounting groove has fixing bolt, is provided with solid locking mechanical system between fixing bolt and the mounting groove. The utility model relates to a glass steel roof fan that possesses low noise, the slope limit through the trapezoidal piece offsets with the slope limit of solid locking piece and holds, and then drives solid locking piece and connecting block and remove towards the direction of solid locked groove, and the connecting block will stretch out and draw back spring this moment, and the partly solid locking piece will be pegged graft in the solid locked groove to die the fixing bolt lock, prevent that it from appearing the not hard up condition.

Description

Glass fiber reinforced plastic roof fan with low noise

Technical Field

The utility model relates to a glass steel roof fan technical field, in particular to glass steel roof fan that possesses low noise.

Background

The glass fiber reinforced plastic roof fan is an advanced roof air exhaust device. The ventilator is mainly suitable for ventilation of buildings such as hotels, restaurants, movie theaters, office buildings, laboratories, factory buildings, houses and the like. The series of fans have the characteristics of attractive appearance, compact structure, high strength, light weight, corrosion resistance, ageing resistance, power saving, low noise, reliable operation, convenient installation and maintenance and the like, and the efficiency is improved by 30 percent by adopting the test of venturi tubes at the inlet and the outlet compared with similar products. The glass fiber reinforced plastic roof fan adopts the axial flow fan with low rotating speed, so the generated noise is less, and meanwhile, the noise of the ventilating place is further reduced by utilizing the filter cotton for silencing treatment.

Generally, glass steel roof fans are fixed on roofs through fixing bolts in the existing market, the fans are always windy in work and on the roofs, the situation that the fixing bolts are loosened can be caused, the use of the fans is influenced, and if a fixing method such as welding is adopted, the fans are inconvenient to disassemble and overhaul.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a glass steel roof fan that possesses low noise can effectively solve among the background art fixing bolt and appear not hard up the condition, influences the fan and uses, if adopt the fixed approach of welding class and so on, then inconvenient dismantles the problem of overhauing it.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a glass fiber reinforced plastic roof fan with low noise comprises a device shell, an axial flow fan fixedly connected inside the device shell, a fan blade fixedly connected with the output end of the axial flow fan, a filter screen embedded in the top of the device shell, and a rain cover fixedly connected to the top of the device shell, wherein the outer side wall of the device shell is provided with a mounting groove, the inside of the mounting groove is in threaded connection with a fixing bolt, and a locking mechanism is arranged between the fixing bolt and the mounting groove;

the locking mechanism comprises a circular groove formed in the inner side wall of the threaded groove, a horizontal groove formed in the inner side wall of the circular groove, a reset spring fixedly connected to the bottom of the horizontal groove, a connecting block fixedly connected to the other end of the reset spring, a locking block fixedly connected to the inner side wall of the connecting block, a vertical groove formed in one side of the horizontal groove, a trapezoidal block movably arranged in the vertical groove, a threaded hole formed in a top plate in the vertical groove, a fixing pin in threaded connection with the threaded hole, and a locking groove formed in the outer side wall of the fixing bolt.

Preferably, the seal groove has been seted up to the tank bottom of circular recess, the seal groove is O type groove, the inside fixed mounting of seal groove has the sealing washer.

Preferably, the return spring is an extension spring, the inner diameter of the return spring is larger than the outer diameter of the locking block, and the central axis of the return spring coincides with the central axis of the locking block.

Preferably, one end of the horizontal groove is communicated with the circular groove through a first rectangular hole, the other end of the horizontal groove is communicated with the vertical groove through a second rectangular hole, the inner diameter of the first rectangular hole is equal to that of the second rectangular hole, and the central axes of the first rectangular hole and the second rectangular hole are coincident.

Preferably, the outer diameter of the connecting block is equal to the inner diameter of the horizontal groove, and the connecting block slides inside the horizontal groove.

Preferably, the fixed locking block comprises a rectangular block and a right-angle triangular block fixedly connected to one end of the rectangular block, the outer diameter of the rectangular block is equal to the inner diameter of the first rectangular hole, and the bevel edge of the right-angle triangular block is parallel to the bevel edge of the trapezoidal block.

Preferably, the number of the locking grooves is four, the locking grooves are distributed in an annular array, and the fixing bolts are hexagon socket head cap bolts.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, fix the device on the roof through fixing bolt, when unable rotation fixing bolt, the opening in solid locked groove this moment will be just to the horizontal groove, then rotatory fixed pin, thereby make the fixed pin drive the trapezoidal piece and move down, and then make the slope limit of trapezoidal piece and the slope limit counterbalance of solid locked piece hold, and then drive solid locked piece and connecting block and move towards the direction in solid locked groove, connecting block will stretch reset spring this moment, and a part of solid locked piece will be pegged graft in the solid locked groove, thereby lock the fixing bolt, prevent it the not hard up condition that appears, when needs dismantle it, upwards rotate the fixed pin, reset spring will drive connecting block and solid locked piece and remove this moment, thereby make solid locked piece break away from solid locked groove, and make solid locked piece promote the trapezoidal piece and get back to the initial position, this moment alright dismantle fixing bolt, conveniently overhaul or change the device.

Drawings

FIG. 1 is a schematic view of the internal structure of a glass fiber reinforced plastic roof fan with low noise;

FIG. 2 is an enlarged schematic view of the structure A of FIG. 1 of the glass fiber reinforced plastic roof fan with low noise of the present invention;

FIG. 3 is an enlarged schematic view of the structure B in FIG. 2 of the glass fiber reinforced plastic roof fan with low noise according to the present invention;

FIG. 4 is a schematic view of the interior of a low-noise fixing bolt for a glass fiber reinforced plastic roof fan according to the present invention;

fig. 5 is the utility model relates to a connection structure sketch map of glass steel roof fan connecting block and solid locking piece that possesses low noise.

In the figure: 1. a device housing; 2. an axial flow fan; 3. a fan blade; 4. filtering with a screen; 5. a rain cover; 6. fixing the bolt; 7. a seal ring; 8. a return spring; 9. connecting blocks; 10. fixing a locking block; 11. a vertical slot; 12. a trapezoidal block; 13. a fixing pin; 14. and (4) fixing the locking groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1-5, the utility model relates to a glass fiber reinforced plastic roof fan with low noise, which comprises a device shell 1, an axial flow fan 2 fixedly connected inside the device shell 1, a fan blade 3 fixedly connected with the output end of the axial flow fan 2, a filter screen 4 embedded at the top of the device shell 1, and a rain cover 5 fixedly connected at the top of the device shell 1, wherein the outer side wall of the device shell 1 is provided with a mounting groove, the inner part of the mounting groove is in threaded connection with a fixing bolt 6, and a fixing and locking mechanism is arranged between the fixing bolt 6 and the mounting groove;

the solid locking mechanism is including seting up at thread groove inside wall circular slot, set up the horizontal groove at the circular slot inside wall, fixed connection is at the reset spring 8 of horizontal groove tank bottom, fixed connection is at the connecting block 9 of the reset spring 8 other end, fixed connection is at the solid locking piece 10 of connecting block 9 inside wall, set up at the vertical groove 11 of horizontal groove one side, the activity is provided with the trapezoidal piece 12 of vertical groove 11 inside, set up the screw hole at vertical groove 11 internal roof, fixed pin 13 with screw hole threaded connection, and set up the solid locked groove 14 of 6 lateral walls of fixing bolt.

The seal groove has been seted up to the tank bottom of circular recess, and the seal groove is O type groove, and the inside fixed mounting of seal groove has sealing washer 7, through the cooperation of sealing washer 7 with the seal groove, prevents that steam from entering into mounting hole and fixing bolt 6's threaded connection department.

Reset spring 8 is extension spring, and reset spring 8's internal diameter size is greater than the external diameter size of solid locking piece 10, and reset spring 8's axis coincides mutually with the axis of solid locking piece 10, through reset spring 8, drives connecting block 9 and solid locking piece 10 and resets.

One end of the horizontal groove is communicated with the circular groove through the first rectangular hole, the other end of the horizontal groove is communicated with the vertical groove 11 through the second rectangular hole, the inner diameter of the first rectangular hole is equal to that of the second rectangular hole, and the central axes of the first rectangular hole and the second rectangular hole coincide.

The outer diameter of the connecting block 9 is equal to the inner diameter of the horizontal groove, the connecting block 9 slides in the horizontal groove, and the fixing and locking block 10 is driven by the connecting block 9 to slide in the horizontal groove.

The locking piece 10 comprises a rectangular block and a right-angle triangular block fixedly connected to one end of the rectangular block, the outer diameter of the rectangular block is equal to the inner diameter of the first rectangular hole, the bevel edge of the right-angle triangular block is parallel to the bevel edge of the trapezoidal block 12, and the right-angle triangular block moves downwards through the trapezoidal block 12 to drive the locking piece 10 to move towards the locking groove 14.

The number of the locking grooves 14 is four, the locking grooves are distributed in an annular array, the fixing bolts 6 are hexagon socket head bolts, and the locking capacity of the fixing bolts 6 is improved through the multiple groups of locking grooves 14.

The utility model discloses a theory of operation does: fix the device on the roof through fixing bolt 6, when unable to rotate fixing bolt 6, the opening of solid locking groove 14 will just be to the horizontal groove this moment, then rotatory fixing pin 13, thereby make fixing pin 13 drive trapezoidal piece 12 and move down, and then make the slope limit of trapezoidal piece 12 and the slope limit of solid locking piece 10 support, and then drive solid locking piece 10 and connecting block 9 and move towards the direction of solid locking groove 14, connecting block 9 will stretch reset spring 8 this moment, and a part of solid locking piece 10 will peg graft in solid locking groove 14, thereby lock fixing bolt 6, prevent it the not hard up condition that appears, when needs dismantle it, upwards rotate fixing pin 13, reset spring 8 will drive connecting block 9 and solid locking piece 10 and move this moment, thereby make solid locking piece 10 break away from solid locking groove 14, and make solid locking piece 10 promote trapezoidal piece 12 to return to the initial position, alright dismantle fixing bolt 6 this moment, conveniently overhaul or change the device, and the fan 2 of low rotational speed is adopted to the device, so the noise that produces is less, and can prevent through setting up rain-proof cover 4 and dust 2 and axial compressor fan 2.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a glass steel roof fan that possesses low noise which characterized in that: the device comprises a device shell (1), an axial flow fan (2) fixedly connected inside the device shell (1), a fan blade (3) fixedly connected with the output end of the axial flow fan (2), a filter screen (4) embedded at the top of the device shell (1), and a rain cover (5) fixedly connected at the top of the device shell (1), wherein the outer side wall of the device shell (1) is provided with a mounting groove, the inside of the mounting groove is in threaded connection with a fixing bolt (6), and a fixing and locking mechanism is arranged between the fixing bolt (6) and the mounting groove;

the fixed locking mechanism comprises a circular groove formed in the inner side wall of the threaded groove, a horizontal groove formed in the inner side wall of the circular groove, a reset spring (8) fixedly connected to the bottom of the horizontal groove, a connecting block (9) fixedly connected to the other end of the reset spring (8), a fixed locking block (10) fixedly connected to the inner side wall of the connecting block (9), a vertical groove (11) formed in one side of the horizontal groove, a trapezoidal block (12) movably arranged in the vertical groove (11), a threaded hole formed in the inner top plate of the vertical groove (11), a fixing pin (13) in threaded connection with the threaded hole, and a fixed locking groove (14) formed in the outer side wall of the fixing bolt (6).

2. The glass fiber reinforced plastic roof fan with low noise of claim 1, wherein: the sealing groove is formed in the groove bottom of the circular groove and is an O-shaped groove, and a sealing ring (7) is fixedly mounted inside the sealing groove.

3. The glass fiber reinforced plastic roof fan with low noise of claim 2, wherein: reset spring (8) are extension spring, the internal diameter size of reset spring (8) is greater than the external diameter size of solid locking piece (10), and the axis of reset spring (8) coincides mutually with the axis of solid locking piece (10).

4. The glass fiber reinforced plastic roof fan with low noise of claim 3, wherein: one end of the horizontal groove is communicated with the circular groove through a first rectangular hole, the other end of the horizontal groove is communicated with the vertical groove (11) through a second rectangular hole, the inner diameter of the first rectangular hole is equal to that of the second rectangular hole, and the central axes of the first rectangular hole and the second rectangular hole are coincident.

5. The fiberglass reinforced plastic roof fan with low noise of claim 4, wherein: the outer diameter of the connecting block (9) is equal to the inner diameter of the horizontal groove, and the connecting block (9) slides in the horizontal groove.

6. The glass fiber reinforced plastic roof fan with low noise of claim 5, wherein: the locking block (10) comprises a rectangular block and a right-angle triangular block fixedly connected to one end of the rectangular block, the outer diameter of the rectangular block is equal to the inner diameter of the first rectangular hole, and the bevel edge of the right-angle triangular block is parallel to the bevel edge of the trapezoidal block (12).

7. The fiberglass reinforced plastic roof fan with low noise of claim 6, wherein: the number of the locking grooves (14) is four, the locking grooves are distributed in an annular array, and the fixing bolts (6) are hexagon socket head cap bolts.