CN213628077U

CN213628077U - Explosion-proof exhaust fan

Info

Publication number: CN213628077U
Application number: CN202022390111.1U
Authority: CN
Inventors: 叶秀峰
Original assignee: Yeqi Shanghai Electric Appliance Co ltd
Current assignee: Yeqi Shanghai Electric Appliance Co ltd
Priority date: 2020-10-25
Filing date: 2020-10-25
Publication date: 2021-07-06
Anticipated expiration: 2030-10-25

Abstract

The utility model discloses an explosion-proof exhaust fan, which comprises a fixed plate, the front end of the fixed plate is provided with a mounting hole, the rear end of the fixed plate is fixedly connected with two third triangle fixing pipes, a motor is fixedly connected between the two third triangle fixing pipes, the output end of the motor is fixedly connected with a rotating shaft, the circumferential surface of the rotating shaft is fixedly connected with three blades which are evenly distributed, the front end of the fixed plate is fixedly connected with two first triangle fixing rods, a gas collecting funnel is fixedly connected between the two first triangle fixing rods, the front end of the gas collecting funnel is fixedly connected with two air guide pipes, the front end of the fixed plate is provided with two round holes, the two air guide pipes respectively penetrate through the two round holes, the air flow at the rear side of the fixed plate is blown to the front side of the fixed plate through the rotation of the blades, the air flow enters the gas collecting funnel and is, prevent the temperature of motor from too high causing burning damage.

Description

Explosion-proof exhaust fan

Technical Field

The utility model belongs to the technical field of exhaust fan equipment, concretely relates to explosion-proof exhaust fan.

Background

The exhaust fan can also be called as an exhaust fan, a ventilation fan and the like, but the product is the same, and the product is supposed to be known, however, the specification of the exhaust fan has some specifications such as 146 × 95cm, 138 × 40cm and the like, the maximum air volume reaches 8000m3/h, a special motor is used for the exhaust fan, a die-casting aluminum alloy shell is adopted, and the protection grade reaches the maximum level IP 12. The motor can be continuously used for 2400/hour without power failure. The shell is made of FRP (fiber reinforced plastic) materials, and has the advantages of light weight, insulation, no rustiness, no aging, moisture resistance, acid and alkali resistance, firmness, durability and long service life. The appearance adopts a unique flow technology, and is waterproof and rainproof. The direct structure is maintenance-free (changes the traditional belt transmission), the function is improved, the structure is simplified, and the maintenance cost is reduced by adopting a special motor. The air downstream principle shutter does not consume electricity, does not need to be opened and closed, and can effectively prevent rain invasion. The planning installation does not occupy space, does not need the tuber pipe, and any place can all install. In the aspect of air draft and ventilation: the air outlet is arranged outside a workshop window, and a lower air outlet is generally selected to draw air out of the louver negative pressure fan and extract peculiar smell and hot air; the application is more in general factories and the like.

The existing exhaust fan is mainly characterized in that a fan blade is driven to rotate by a motor, the motor works for a long time to generate high temperature, the motor is easy to burn and damage, the fan blade rotates for a long time and is easy to fall off, a user is injured, and the requirement in practice is difficult to meet, so that the explosion-proof exhaust fan is provided.

Disclosure of Invention

An object of the utility model is to provide an explosion-proof exhaust fan to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an explosion-proof exhaust fan, includes the fixed plate, the front end of fixed plate is excavated there is the mounting hole, two fixed pipes of two third triangles of rear end fixedly connected with of fixed plate, two fixedly connected with motor between the fixed pipe of third triangle, the output fixedly connected with pivot of motor, the three even flabellum of distribution of circumference fixed surface of pivot, two first triangle dead levers of front end fixedly connected with of fixed plate, two fixedly connected with gas collection funnel between the first triangle dead lever, two air ducts of front end fixedly connected with of gas collection funnel, the front end of fixed plate is excavated there are two round holes, two the air duct runs through in two round holes respectively.

Preferably, the front end of the fixing plate is fixedly connected with two second triangular fixing tubes, a connecting plate is fixedly connected between the two second triangular fixing tubes, the rear end of the connecting plate is fixedly connected with an insertion rod, and the insertion rod is movably inserted into the rotating shaft.

Preferably, the inserted bar is positioned between the gas collection funnel and the rotating shaft, and the height of the connecting plate is smaller than that of the gas collection funnel.

Preferably, the two first triangular fixing rods are respectively and fixedly connected to the left part and the right part of the front end of the fixing plate, and the mounting hole is formed between the two first triangular fixing rods.

Preferably, the two second triangular fixing tubes are respectively and fixedly connected to the upper part and the lower part of the front end of the fixing plate, and the mounting hole is formed between the two second triangular fixing tubes.

Preferably, the fixed plate about two fixed feet of both ends equal fixedly connected with, four threaded hole is all dug to the front end of fixed foot.

Preferably, one end of each air duct is fixedly connected with an air outlet nozzle, and the two air outlet nozzles point to the motor.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this scheme is blown the air current of fixed plate rear side to the front side of fixed plate through the rotation of flabellum, and in the air current entered into the gas collection funnel, two round holes of rethread were blown to the motor, realized the cooling to the motor, prevented that the high temperature of motor from causing the burning to damage.

2. This scheme carries out the position of fixed connection board through the fixed pipe of second triangle, carries out the position of fixing the gas collection funnel through first triangle dead lever, carries out the position of fixed motor through the fixed pipe of third triangle, and the setting of the fixed pipe of first triangle dead lever, second triangle and the fixed pipe of third triangle is realized sheltering from both sides around the mounting hole, prevents that the flabellum from using the departure for a long time and causing user's injury, has improved the security of this device.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective exploded view of the present invention;

FIG. 3 is a perspective view of the gas collection funnel of the present invention;

FIG. 4 is a perspective view of the fan blade of the present invention;

fig. 5 is a perspective view of the second triangular fixing tube of the present invention.

In the figure: 1. a fixing plate; 2. a fixing leg; 3. a threaded hole; 4. a circular hole; 5. an air duct; 6. a first triangular fixing rod; 7. a second triangular fixed tube; 8. a gas collection funnel; 9. a fan blade; 10. mounting holes; 11. a motor; 12. a third triangular fixed tube; 13. a rotating shaft; 14. inserting a rod; 15. a connecting plate; 16. an air outlet nozzle.

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.

Please refer to fig. 1-5, the utility model provides an explosion-proof exhaust fan, including fixed plate 1, the front end of fixed plate 1 is excavated there is mounting hole 10, the fixed pipe 12 of two third triangle of rear end fixedly connected with of fixed plate 1, fixedly connected with motor 11 between the fixed pipe 12 of two third triangle, motor 11's output fixedly connected with pivot 13, the three even flabellum 9 of distribution of circumference fixed surface of pivot 13, two first triangle dead levers 6 of fixed plate 1's front end fixedly connected with, fixedly connected with gas collection funnel 8 between two first triangle dead levers 6, two air ducts 5 of gas collection funnel 8's front end fixedly connected with, the front end of fixed plate 1 is excavated there are two round holes 4, two air ducts 5 run through in two round holes 4 respectively.

In this embodiment, preferably, the two second triangular fixing tubes 7 are fixedly connected to the front end of the fixing plate 1, the connecting plate 15 is fixedly connected between the two second triangular fixing tubes 7, the inserting rod 14 is fixedly connected to the rear end of the connecting plate 15, the inserting rod 14 is movably inserted into the rotating shaft 13, the second triangular fixing tubes 7 are beneficial to fixing the position of the connecting plate 15, the position of the connecting plate 15 is beneficial to fixing the position of the inserting rod 14, and the position of the inserting rod 14 is beneficial to further fixing the position of the fan blade 9, so as to prevent the fan blade 9 from flying out.

In this embodiment, preferably, the insertion rod 14 is located between the gas collecting funnel 8 and the rotating shaft 13, the height of the connecting plate 15 is smaller than the height of the gas collecting funnel 8, and the height of the connecting plate 15 is smaller than the height of the gas collecting funnel 8, which is beneficial to increasing the air volume brought out by the rotation of the fan blade 9 into the gas collecting funnel 8.

In this embodiment, preferably, the two first triangular fixing rods 6 are respectively fixedly connected to the left and right portions of the front end of the fixing plate 1, and the mounting hole 10 is located between the two first triangular fixing rods 6, so that wind can be conveniently blown into the gas collecting funnel 8, and the heat dissipation effect on the motor 11 is improved.

In this embodiment, preferably, the two second triangular fixing tubes 7 are respectively fixedly connected to the upper and lower portions of the front end of the fixing plate 1, the mounting hole 10 is located between the two second triangular fixing tubes 7, and the distribution of the second triangular fixing tubes 7 and the first triangular fixing rod 6 is beneficial to sealing the front space of the fixing plate 1, so as to prevent the fan blades 9 from flying out of the mounting hole 10.

In this embodiment, preferred, two fixed feet 2 of the equal fixedly connected with in both ends about fixed plate 1, threaded hole 3 is all dug to the front end of four fixed feet 2, and fixed feet 2 be provided with benefit in improving the fixed effect of this device, be convenient for install this device dismantlement.

In this embodiment, preferred, the equal fixedly connected with air outlet nozzle 16 of one end of two air ducts 5, two air outlet nozzles 16 all point to in motor 11, and air outlet nozzle 16 be provided with and benefit to improving the concentrated effect that air duct 5 bloied to motor 11, improved motor 11's radiating effect.

The utility model discloses a theory of operation and use flow: when the device uses, motor 11 is opened, the rotatory pivot 13 rotation that drives of output of motor 11, the rotation of pivot 13 drives flabellum 9 rotatory, flabellum 9's rotation blows the air of fixed plate 1 rear end to the front end of fixed plate 1, the air current enters into in the gas collection funnel 8, the air current enters into two air outlet nozzle 16 through two first triangle dead levers 6 in, the air current is finally spouted to motor 11 through air outlet nozzle 16, realize accelerating the flow velocity of motor 11 surface air, improve motor 11's radiating effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an explosion-proof exhaust fan, includes fixed plate (1), its characterized in that: a mounting hole (10) is drilled at the front end of the fixing plate (1), two third triangular fixing pipes (12) are fixedly connected at the rear end of the fixing plate (1), a motor (11) is fixedly connected between the two third triangular fixing pipes (12), the output end of the motor (11) is fixedly connected with a rotating shaft (13), the circumferential surface of the rotating shaft (13) is fixedly connected with three evenly distributed fan blades (9), two first triangular fixing rods (6) are fixedly connected with the front end of the fixing plate (1), a gas collecting funnel (8) is fixedly connected between the two first triangular fixing rods (6), the front end of the gas collection funnel (8) is fixedly connected with two gas guide pipes (5), two round holes (4) are cut at the front end of the fixing plate (1), and the air guide pipes (5) penetrate through the two round holes (4) respectively.

2. An explosion-proof exhaust fan in accordance with claim 1, wherein: the front end fixedly connected with two second triangle fixed tubes (7) of fixed plate (1), two fixedly connected with connecting plate (15) between second triangle fixed tube (7), the rear end fixedly connected with inserted bar (14) of connecting plate (15), inserted bar (14) activity is pegged graft in pivot (13).

3. An explosion-proof exhaust fan in accordance with claim 2, wherein: the inserted rod (14) is positioned between the gas collection funnel (8) and the rotating shaft (13), and the height of the connecting plate (15) is smaller than that of the gas collection funnel (8).

4. An explosion-proof exhaust fan in accordance with claim 1, wherein: two first triangle dead lever (6) are two parts about the front end of fixed plate (1) fixed connection respectively, and mounting hole (10) are located between two first triangle dead levers (6).

5. An explosion-proof exhaust fan in accordance with claim 2, wherein: the two second triangular fixing pipes (7) are respectively fixedly connected to the upper portion and the lower portion of the front end of the fixing plate (1), and the mounting hole (10) is located between the two second triangular fixing pipes (7).

6. An explosion-proof exhaust fan in accordance with claim 1, wherein: the left end and the right end of the fixing plate (1) are fixedly connected with two fixing feet (2) and four threaded holes (3) are formed in the front ends of the fixing feet (2).

7. An explosion-proof exhaust fan in accordance with claim 1, wherein: two the equal fixedly connected with of one end of air duct (5) goes out air nozzle (16), two go out air nozzle (16) and all point to in motor (11).