CN219433418U - Building ventilation device - Google Patents

Abstract

The utility model provides a building ventilation device, which comprises a base, wherein the top of the base is fixedly connected with a building ventilation tube arranged along the horizontal direction, an outer hexagonal rotating shaft is connected and linked in the building ventilation tube through a rotating driving mechanism, an inner hexagonal connecting sleeve is movably sleeved on the outer hexagonal rotating shaft, and a plurality of fan blades are fixedly connected on the outer ring of the inner hexagonal connecting sleeve along the circumferential direction; the inner side of the dustproof net is connected with a positioning shaft in a matched rotation way through a bearing and a shaft seat, and the free end of the positioning shaft is provided with an inner hexagonal positioning groove which is matched with the outer hexagonal rotating shaft; the utility model has compact structure and reasonable design, and can be used for rapidly disassembling and assembling the fan blades, thereby being convenient for cleaning the fan blades, ensuring the ventilation effect and being beneficial to the construction ventilation work.

Description

Building ventilation device

Technical Field

The utility model relates to the technical field of building ventilation, in particular to a building ventilation device.

Background

When building construction, especially underground construction, in order to avoid that indoor dirty air influences the health of staff, a building ventilation device is generally arranged, so that indoor air flow is quickened, and indoor turbid air is discharged. The existing building ventilation device generally adopts a ventilation fan to ventilate, and in the use process, in order to avoid dust to influence a fan, a dust screen is generally detachably arranged on the ventilation fan.

However, in the process of disassembling and cleaning the dust screen, a large amount of fine dust can be adhered to the fan blades of the ventilating fan, and the fan blades cannot be quickly disassembled and assembled at present, so that the fan blades are not easy to clean, and the ventilating effect is influenced for a long time.

Disclosure of Invention

The present utility model is directed to a building ventilation device, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the building ventilation device comprises a base, wherein the top of the base is fixedly connected with a building ventilation tube arranged along the horizontal direction, one end of the building ventilation tube is provided with an air inlet, the other end of the building ventilation tube is provided with an air outlet, a dust screen which is matched with the air inlet is detachably connected to the building ventilation tube, and an anti-mosquito screen which is matched with the air outlet is detachably connected to the building ventilation tube;

an outer hexagonal rotating shaft is connected and linked in the building ventilating tube through a rotary driving mechanism, an inner hexagonal connecting sleeve is movably sleeved on the outer hexagonal rotating shaft, and a plurality of fan blades are fixedly connected on the outer ring of the inner hexagonal connecting sleeve along the circumferential direction; the inner side of the dustproof net is connected with a positioning shaft in a matched rotation way through a bearing and a shaft seat, and the free end of the positioning shaft is provided with an inner hexagonal positioning groove which is matched with the outer hexagonal rotating shaft.

As a further scheme of the utility model: the dust-proof net comprises a dust-proof net, a connecting ring, a mounting ring, a plurality of screws, nuts, a sealing ring, a connecting ring and a sealing ring, wherein the connecting ring is fixedly connected to the outer ring of the dust-proof net, the mounting ring is fixedly connected to one end, close to the connecting ring, of the building ventilating drum, the screws are uniformly distributed on the mounting ring at intervals along the circumferential direction, each screw movably passes through the connecting ring along the horizontal direction, the nuts are connected to the free end through threads, and the sealing ring is clamped between the mounting ring and the connecting ring;

the dust screen is detachably connected with the building ventilating drum through the cooperation of the connecting ring, the mounting ring, the screw rod, the nut and the sealing ring.

As a further scheme of the utility model: the rotary driving mechanism comprises a mounting rod fixedly connected in the building ventilating drum, a driving motor is connected to the mounting rod through a screw, a driving shaft connected with the driving motor in a linkage mode is connected to the mounting rod in a rotating mode, and the outer hexagonal rotating shaft is fixedly connected to the free end of the driving shaft.

As a further scheme of the utility model: the diameter of the outer hexagonal rotating shaft is smaller than that of the driving shaft, and the inner hexagonal connecting sleeve is positioned and fixed through the matching of the driving shaft and the positioning shaft.

As a further scheme of the utility model: the port of the inner hexagonal connecting sleeve far away from the positioning shaft is in a horn shape, and the outer port of the inner hexagonal positioning groove is in a horn shape.

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

after the structure is adopted, the fan blade can be cleaned by mutually matching the outer hexagonal rotating shaft, the inner hexagonal connecting sleeve, the fan blade, the positioning shaft and the inner hexagonal positioning groove, and in the process of removing the dust screen for cleaning, the positioning shaft can be removed together with the dust screen, and then the inner hexagonal connecting sleeve is removed from the outer hexagonal rotating shaft. After the cleaning is finished, the inner hexagonal connecting sleeve is movably sleeved on the outer hexagonal rotating shaft, then when the dustproof net is installed, the outer hexagonal rotating shaft is inserted into the inner hexagonal positioning groove, so that the fan blade can be installed, and the fan blade can stably rotate through the hexagonal structure. The utility model has compact structure and reasonable design, and can be used for rapidly disassembling and assembling the fan blades, thereby being convenient for cleaning the fan blades, ensuring the ventilation effect and being beneficial to the construction ventilation work.

Drawings

Fig. 1 is a schematic structural view of a building ventilation device.

Fig. 2 is an enlarged partial schematic view at a in fig. 1.

Fig. 3 is a partially enlarged schematic view at B in fig. 1.

In the figure: 1. a base; 2. building ventilation tube; 3. a dust screen; 4. an anti-mosquito net; 5. a rotary driving mechanism; 501. a mounting rod; 502. a driving motor; 503. a drive shaft; 6. an outer hexagonal rotation shaft; 7. an inner hexagonal connecting sleeve; 8. a fan blade; 9. positioning a shaft; 10. an inner hexagonal positioning groove; 11. a connecting ring; 12. a mounting ring; 13. a screw; 14. a nut; 15. and (3) sealing rings.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Referring to fig. 1-3, a building ventilation device includes a base 1, a building ventilation tube 2 arranged along a horizontal direction is fixedly connected to the top of the base 1, an air inlet is formed at one end of the building ventilation tube 2, an air outlet is formed at the other end of the building ventilation tube 2, a dust screen 3 adapted to the air inlet is detachably connected to the building ventilation tube 2, and external dust can be prevented from entering the building ventilation tube 2 during air inlet, and other components in the building ventilation tube 2 are affected. The building ventilation tube 2 is detachably connected with the mosquito-proof net 4 which is matched with the air outlet, so that external mosquitoes can be prevented from entering the building ventilation tube 2 in the using process; an outer hexagonal rotating shaft 6 is connected and linked in the building ventilating drum 2 through a rotary driving mechanism 5, an inner hexagonal connecting sleeve 7 is movably sleeved on the outer hexagonal rotating shaft 6, and when the outer hexagonal rotating shaft 6 rotates, the inner hexagonal connecting sleeve 7 can be driven to rotate. A plurality of fan blades 8 are fixedly connected on the outer ring of the inner hexagonal connecting sleeve 7 along the circumferential direction; the inner side of the dust screen 3 is rotatably connected with a positioning shaft 9 through the matching of a bearing and a shaft seat, an inner hexagonal positioning groove 10 which is matched with the outer hexagonal rotating shaft 6 is formed at the free end of the positioning shaft 9, and the inner hexagonal connecting sleeve 7 can be positioned and fixed through the matching between the positioning shaft 9 and the inner hexagonal positioning groove 10, so that the inner hexagonal connecting sleeve 7 is prevented from falling off from the outer hexagonal rotating shaft 6. In the process of removing the dust screen 3 for cleaning, the positioning shaft 9 can be removed together with the dust screen 3, and then the inner hexagonal connecting sleeve 7 is removed from the outer hexagonal rotating shaft 6, so that the fan blades 8 can be cleaned. After cleaning, the inner hexagonal connecting sleeve 7 is movably sleeved on the outer hexagonal rotating shaft 6, then when the dust screen 3 is installed, the outer hexagonal rotating shaft 6 is inserted into the inner hexagonal positioning groove 10, and then the fan blade 8 can be installed, and the fan blade 8 can stably rotate through the hexagonal structure.

The outer ring of the dust screen 3 is fixedly connected with a connecting ring 11, one end, close to the connecting ring 11, of the building ventilating drum 2 is fixedly connected with a mounting ring 12, a plurality of screws 13 are uniformly distributed on the mounting ring 12 at intervals along the circumferential direction, each screw 13 movably passes through the connecting ring 11 along the horizontal direction, the free end is in threaded connection with a nut 14, a sealing ring 15 is clamped between the mounting ring 12 and the connecting ring 11, and the joint of the rest connecting rings 11 of the mounting ring 12 can be sealed; the dust screen 3 is detachably connected with the building ventilating duct 2 through the cooperation of the connecting ring 11, the mounting ring 12, the screw rod 13, the nut 14 and the sealing ring 15, and the dust screen 3 is convenient to disassemble and assemble. In addition, the detachable mode between the mosquito-proof net 4 and the building ventilating duct 2 is the same as the detachable mode between the dust-proof net 3 and the building ventilating duct 2, so that the disassembly and the assembly are convenient for cleaning.

Specifically, the rotary driving mechanism 5 includes a mounting rod 501 fixedly connected in the building ventilation tube 2, and a driving motor 502 is connected to the mounting rod 501 through a screw, so that the driving motor 502 can be conveniently disassembled and overhauled after the anti-mosquito net 4 is disassembled. A drive shaft 503 linked with the drive motor 502 is rotatably connected to the mounting lever 501, and the outer hexagonal rotary shaft 6 is fixedly connected to the free end of the drive shaft 503. Further, the diameter of the outer hexagonal rotating shaft 6 is smaller than that of the driving shaft 503, and the inner hexagonal connecting sleeve 7 is positioned and fixed by the cooperation of the driving shaft 503 and the positioning shaft 9, so that the inner hexagonal connecting sleeve 7 is kept at a fixed position, and when the driving motor 502 drives the driving shaft 503 to rotate, the fan blade 8 can be driven to rotate stably through the hexagonal structure.

Preferably, the port of the inner hexagonal connecting sleeve 7 far away from the positioning shaft 9 is in a horn shape, so that the inner hexagonal connecting sleeve 7 is conveniently sleeved on the outer hexagonal rotating shaft 6, and meanwhile, reverse installation of the fan blade 8 is avoided. The outer port of the inner hexagonal positioning groove 10 is in a horn shape and is conveniently sleeved on the outer hexagonal rotating shaft 6.

In this embodiment, the driving motor 501 is a prior art, and will not be described herein. In addition, it should be noted that, the dustproof net 3 and the mosquito-proof net 4 adopted in the application are both in the prior art, and the mesh size of each component can be formulated according to the actual requirement, and are also in the prior art, so that the connection relationship and principle thereof are not repeated here.

The working principle of the utility model is as follows: when the building ventilation device needs to be cleaned, the dust screen 3 is detached firstly, and the positioning shaft 9 can be taken out of the building ventilation tube 2 simultaneously in the process of detaching the dust screen 3; then, the inner hexagonal connecting sleeve 7 is removed from the outer hexagonal rotating shaft 6, and the dust screen 3 and the fan blades 8 can be cleaned.

After cleaning, the inner hexagonal connecting sleeve 7 is sleeved on the outer hexagonal rotating shaft 6, then when the dust screen 3 is installed, the inner hexagonal positioning groove 10 is sleeved on the outer hexagonal rotating shaft 6, and the fan blades 8 can be positioned and fixed in the building ventilating drum 2, and the fan blades 8 are driven to stably rotate through the hexagonal structure, so that ventilation is carried out on a building construction site.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (5)

1. The building ventilation device comprises a base (1), and is characterized in that the top of the base (1) is fixedly connected with a building ventilation tube (2) arranged along the horizontal direction, an air inlet is formed in one end of the building ventilation tube (2), an air outlet is formed in the other end of the building ventilation tube (2), a dust screen (3) which is suitable for the air inlet is detachably connected to the building ventilation tube (2), and an anti-mosquito screen (4) which is suitable for the air outlet is detachably connected to the building ventilation tube (2);

an outer hexagonal rotating shaft (6) is connected and linked in the building ventilating drum (2) through a rotary driving mechanism (5), an inner hexagonal connecting sleeve (7) is movably sleeved on the outer hexagonal rotating shaft (6), and a plurality of fan blades (8) are fixedly connected on the outer ring of the inner hexagonal connecting sleeve (7) along the circumferential direction; the inner side of the dustproof net (3) is rotatably connected with a positioning shaft (9) through the matching of a bearing and a shaft seat, and an inner hexagonal positioning groove (10) which is matched with the outer hexagonal rotating shaft (6) is formed at the free end of the positioning shaft (9).

2. The building ventilation device according to claim 1, wherein the outer ring of the dustproof net (3) is fixedly connected with a connecting ring (11), one end, close to the connecting ring (11), of the building ventilation tube (2) is fixedly connected with a mounting ring (12), a plurality of screws (13) are uniformly distributed on the mounting ring (12) at intervals along the circumferential direction, each screw (13) movably penetrates through the connecting ring (11) along the horizontal direction and is connected with a nut (14) at the free end in a threaded manner, and a sealing ring (15) is clamped between the mounting ring (12) and the connecting ring (11);

the dustproof net (3) is detachably connected with the building ventilating duct (2) through the cooperation of the connecting ring (11), the mounting ring (12), the screw rod (13), the nut (14) and the sealing ring (15).

3. A building ventilation device according to claim 1, characterized in that the rotary driving mechanism (5) comprises a mounting rod (501) fixedly connected in the building ventilation tube (2), a driving motor (502) is connected to the mounting rod (501) through a screw, a driving shaft (503) connected and linked with the driving motor (502) is rotatably connected to the mounting rod (501), and the outer hexagonal rotary shaft (6) is fixedly connected to the free end of the driving shaft (503).

4. A building ventilation device according to claim 3, characterized in that the diameter of the outer hexagonal rotating shaft (6) is smaller than the diameter of the driving shaft (503), and the inner hexagonal connecting sleeve (7) is fixed in position by the cooperation of the driving shaft (503) and the positioning shaft (9).

5. A building ventilation device according to claim 1, characterized in that the end opening of the inner hexagonal connecting sleeve (7) remote from the positioning shaft (9) is flared, and the outer end opening of the inner hexagonal positioning groove (10) is flared.